Fruit and vegetable, right? (4)
I believe the answer is:
pear
'fruit' is the definition.
(pear is a kind of fruit)
'vegetable right?' is the wordplay.
'vegetable' becomes 'pea' (pea is a type of vegetable).
'right?' becomes 'r' (abbreviation).
'pea'+'r'='PEAR'
'and' acts as a link.
(Other definitions for pear that I've seen before include "Fruit sounds like two of a kind" , "William, maybe" , "Shapely fruit?" , "Pomaceous fruit" , "Conference, perhaps" .)