Fruit is nice, neat, and served up about right (9)
I believe the answer is:
nectarine
'fruit' is the definition.
(I know that nectarine is a type of peach)
'nice neat and served up about right' is the wordplay.
I cannot really understand how this works, but
'and' could be 'n' (common abbreviation for 'and') and 'n' is found within the answer.
'about' could be 'c' (abbreviation for 'circa') and 'c' is found within the answer.
'right' could be 'ar' (I've seen this in other clues) and 'ar' is found in the answer.
This explanation may well be incorrect...
'is' is the link.
Can you help me to learn more?
(Other definitions for nectarine that I've seen before include "Kind of peach with thin skin and no down" , "Peach-like fruit" , "Smooth-skinned fruit" , "type of tree" , "Fruit - aren't nice (anag)" .)