Strange beer I eventually swallowed (5)
I believe the answer is:
eerie
'strange' is the definition.
(thesaurus)
'beer i eventually swallowed' is the wordplay.
'swallowed' says the answer is hidden in the clue (I've seen 'swallowing' mean this).
'EERIE' is hidden within 'beer i eventually'.
(Other definitions for eerie that I've seen before include "Weird, uncanny" , "Sinister" , "Unnerving" , "Uncannily strange" , "Frighteningly odd" .)