Fruit piece good? Not half (5)
I believe the answer is:
mango
'fruit' is the definition.
(type of fruit)
'piece good? not half' is the wordplay.
I cannot quite see how this works, but
'piece' could be 'man' (man can mean a chess piece) and 'man' is present in the answer.
'good?' could be 'g' (abbreviation) and 'g' is present in the answer.
'not' could be 'o' (I've seen this in other clues) and 'o' is found in the answer.
This accounts for all the letters.
This may be the basis of clue (or it may be nonsense).
(Other definitions for mango that I've seen before include "Tropical fruit, its pickle" , "No, Mag has the odd fruit" , "Fleshy tropical fruit" , "Asian fruit" , "Large oval tropical fruit" .)