Fruit that could be cheap (5)
I believe the answer is:
peach
'fruit' is the definition.
(type of fruit)
'could be cheap' is the wordplay.
'could be' is an anagram indicator.
'cheap' with letters rearranged gives 'PEACH'.
'that' acts as a link.
(Other definitions for peach that I've seen before include "Velvety-skinned fruit" , "Fleshy fruit; colour" , "Inform on" , "Juicy fruit with yellow-pink skin and rough stone" , "Fruit - beauty" .)