Puzzle created by savage into lager? (8)
I believe the answer is:
bewilder
'puzzle' is the definition.
(I know that puzzle can be written as bewilder)
'savage into lager?' is the wordplay.
'savage' becomes 'wild' (similar in meaning).
'into' is an insertion indicator.
'lager?' becomes 'beer' (lager is a kind of beer).
'wild' going inside 'beer' is 'BEWILDER'.
'created by' is the link.
(Other definitions for bewilder that I've seen before include "Confuse, puzzle" , "Confuse totally" , "Baffle" , "Confuse - perplex" , "fox" .)