Little is able to get into the pig's place (6)
I believe the answer is:
scanty
'little' is the definition.
(thesaurus)
'able to get into the pig's place' is the wordplay.
'able' becomes 'can'.
'to get into' means one lot of letters goes inside another.
'the pig's place' becomes 'sty' (I've seen this in another clue).
'can' put within 'sty' is 'SCANTY'.
'is' acts as a link.
(Other definitions for scanty that I've seen before include "(Of clothing) barely adequate" , "Spare" , "Insufficient in quantity" , "(Of clothing) revealing" , "Too small or little" .)