Give a hand to Friends making comeback (4)
I believe the answer is:
slap
'give a hand' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.
'friends making comeback' is the wordplay.
'friends' becomes 'pals' (pal is a kind of friend).
'making comeback' says the letters should be written in reverse.
'pals' backwards is 'SLAP'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for slap that I've seen before include "Right" , "Hit with a flat hand" , "Hit with an open hand" , "Blow with open hand" , "Hit with the palm" .)