Friends is returning with immediate impact? Absolutely (4-4)
I believe the answer is:
slap-bang
'absolutely' is the definition.
Both the answer and definition are adverbs. Perhaps they are linked in a way I don't understand?
'friends is returning with immediate impact?' is the wordplay.
'friends' becomes 'pals' (pal is a kind of friend).
'is returning' is a reversal indicator.
'with' means one lot of letters go next to another.
'immediate impact?' becomes 'bang' (bang is a kind of impact. I am not sure about the 'immediate' bit.).
'pals' back-to-front is 'slap'.
'slap'+'bang'='SLAP-BANG'
Can you help me to learn more?
(Other definitions for slap-bang that I've seen before include "Absolutely (in the middle)" , "right?" , "All at once - violently" , "Suddenly - directly" .)