Tumbler and bottle-opener held by a European (7)
I believe the answer is:
acrobat
'tumbler' is the definition.
(synonyms)
'bottle-opener held by a european' is the wordplay.
'opener' suggests taking the first letters.
'held by' is an insertion indicator.
'european' becomes 'croat' (person from Croatia).
The initial letter of 'bottle' is 'b'.
'a'+'croat'='acroat'
'b' inserted into 'acroat' is 'ACROBAT'.
'and' is the link.
(Other definitions for acrobat that I've seen before include "Agile circus performer" , "Circus entertainer" , "circus artiste" , "Circus star" , "performer of risky feats?" .)