Leftover pears, possibly (5)
I believe the answer is:
spare
'leftover' is the definition.
(I've seen this before)
'pears possibly' is the wordplay.
'possibly' is an anagram indicator.
'pears' with letters rearranged gives 'SPARE'.
(Other definitions for spare that I've seen before include "Pardon; unneeded" , "A feature of trousers" , "Let off; extra" , "Superfluous" , "not in actual use" .)