From what we hear, they may be just fools? (8)
I believe the answer is:
desserts
'fools?' is the definition.
(fool is a type of dessert)
'from what we hear they may be just' is the wordplay.
'from what we hear' indicates a 'sounds like' (homophone) clue.
'they may be just' becomes 'deserts' (as in a person's 'just deserts').
'deserts' sounds like 'DESSERTS'.
(Other definitions for desserts that I've seen before include "fools, perhaps?" , "Final courses" , "Sweets" , "That may be cobblers" , "Puddings" .)