Go in for pipe playing (3)
I believe the answer is:
pep
'go' is the definition.
(I've seen this in another clue)
'in for pipe playing' is the wordplay.
'in' says the answer is hidden in the clue.
'PEP' is hidden within 'for pipe playing'.
(Other definitions for pep that I've seen before include "Vim and vitality" , "savings plan" , "Ginger; tax-free investment" , "Energy, liveliness" , "Energy or enthusiasm" .)