One hug, possibly as good as a feast? (6)
I believe the answer is:
enough
'as good as a feast?' is the definition.
(as in the saying 'enough is as good as a feast')
'one hug possibly' is the wordplay.
'possibly' indicates anagramming the letters.
'one'+'hug'='onehug'
'onehug' with letters rearranged gives 'ENOUGH'.
(Other definitions for enough that I've seen before include "As much as desired" , "As many as are required" , "` `A word to the wise is ......' '" , "Sufficient to answer demand" , "It's said to be as good as a feast" .)