Spirit shown by a victor during a surrender (7)
I believe the answer is:
aquavit
'spirit' is the definition.
(I've seen this before)
'a victor during a surrender' is the wordplay.
'victor' becomes 'V' (phonetic alphabet: alpha, bravo, charlie etc.).
'during' indicates putting letters inside.
'surrender' becomes 'quit' (quit can mean to give up or surrender).
'a'+'v'='av'
'a'+'quit'='aquit'
'av' inserted within 'aquit' is 'AQUAVIT'.
'shown by' acts as a link.
(Other definitions for aquavit that I've seen before include "The Swedish drink" , "An alcoholic spirit originally from Scandinavia" , "strong drink" , "Scandinavian flavoured spirit" .)