Audacity of Spurs' wingers going after two cups (5)
I believe the answer is:
brass
'audacity' is the definition.
(I've seen this in another clue)
'spurs' wingers going after two cups' is the wordplay.
'wingers' means to remove the middle letters (letters on the edges or wings of the word).
'going after' is a charade indicator (letters next to each other).
'two cups' becomes 'bra' (as in the two cups of a bra).
'spurs' with its middle taken out is 'ss'.
'ss' put after 'bra' is 'BRASS'.
'of' is the link.
(Other definitions for brass that I've seen before include "instrumental group" , "Alloy of copper and zinc" , "cash" , "Rhino" , "Boldness" .)