A bit stuck on the bottom right, plus 2d is a worry. Any help as ever, welcome...
2d Half wild, stray creature's fleece gripped by boar (2-3)P_/D_G
Is it Pi dog or something?
From bottom right...
51a Sitcom I devised about old man being congenial (9) S___A___O.
It looks like and anagram of sitcomI with PA it it that means congenial. Any thoughts welcome.