I have about the same arrangement you describe, about 8 acres pasture, 10 acres woods.
I just cleared some of the woods for a bigger back yard ( house is centered in the woods). i didn't want to take down any big tress, but there was a lot of brush and saplings in there to be removed.
I did all the clearing with FEL and a landscape rake.The only time I needed the chain saw as for the vines hanging from the trees i didn't want to damage.
I'm not sure how big your tractor is, but my Deere 4120 (about 3700) lbs with R4's, woukld make quick work of small trees.
I just raised the loader bucket up high for good leverage, and slowly pushed them over, being real careful not to store a lot of energy in a bent over tree. Sometimes I had to hit them from more than one side, sometimes digging the loader in low to flip the root ball out. Being new to tractoring I am amazed what a FEL can do.
For small bushes and growth I got real good at just hitting them right where they came out of the ground with the edge of the fel and pulled them right out, roots and all.
I found having the bucket level indicator set right is a key, then the bucket can be set and pushed along right above or right below ground level, whatever works best for the spot you are in.
i used the landscape rake for clean up and "blending". I removed two of three tines because it was pulling too much dirt. After i got the big stuff out of the way, I put all the tines back, set it to a more agressive angle and it really cleaned up the land nice.
As i said, i am amazed what a tool an FEL is. It can really wreak some havoc, and i am sure many people have been hurt running a tractor with one. During the job, there were many times were if I wasn't careful, very bad things could have happened.
The man seat pucker incident i encountered with this job was due to the landsacpe rake. How can a lanscape rake be dangerous? Well i was pulling debris to a cenral location, attempting to make straight passes and get as close a possible to the trees i was passing so as to not leave a lot of junk around the trunks. I went by a small tree a little too close. The tree was small enough that the tractor and rake pulled it right down. If the tractor didn't have ROPS, that tree would have crushed my skull. Be carefull out there!
My big question is what to do with my pile of junk? The house is on a well, so I don't have a lot of water if I needed it. The pile is in the middle of the woods somewhat near the house. I would be too nervous about burning it.
i was thinking of renting something to dig a hole to bury it. It would need to be a big hole, and I guess I 'd need to leave a mound to account for settlement. The mound doesn't sound too attractive either, and i really don't have a feel for how much and how long it would take to settle.
Today I limed, fertilized and seeded. I'm not looking for a golf course lawn or anything, just decent coverage. Being that this area will be somewhat shaded, do I need to cover with straw? I'm in south central, PA.
JT