Puzzle deception with German drink (9)
I believe the answer is:
conundrum
'puzzle' is the definition.
(a conundrum is a puzzle or mystery)
'deception with german drink' is the wordplay.
'deception' becomes 'con' (a con is a trick or deception).
'with german' becomes 'und' ('and' in German).
'drink' becomes 'rum' (rum is a kind of drink).
'con'+'und'+'rum'='CONUNDRUM'
(Other definitions for conundrum that I've seen before include "Difficult question" , "It's a riddle or a hard question" , "anagram" , "That's puzzling" , "Difficult problem" .)