Palm and what's attached, a bunch of bananas (4)
I believe the answer is:
hand
'a bunch of bananas' is the definition.
(I've seen this before)
'palm and what's attached' is the wordplay.
'palm' becomes 'h' (I can't explain this - if you can you should believe this answer much more).
'what's attached' is a charade indicator (letters next to each other).
'h'+'and'='HAND'
Can you help me to learn more?
(Other definitions for hand that I've seen before include "Pointer; workman" , "Unit of measurement of a horse's height" , "Unclenched fist" , "Worker; body part" , "Worker - penmanship - four inches" .)