One fruit sounds like two (4)
I believe the answer is:
pear
'one fruit sounds like two' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for pear that I've seen before include "Cone-shaped fruit" , "Fruit sounds like two of a kind" , "Juicy fruit" , "Conference, perhaps" , "Tapering fleshy fruit - reap it" .)