Beat struggling Spurs, netting a second (7)
I believe the answer is:
surpass
'beat' is the definition.
(surpassing is a kind of beating)
'struggling spurs netting a second' is the wordplay.
'struggling' is an anagram indicator (I've seen this in other clues).
'netting' is an insertion indicator (net can mean to contain or capture).
'a second' becomes 'as' (I've seen this in other clues).
'spurs' with letters rearranged gives 'surps'.
'surps' placed around 'as' is 'SURPASS'.
(Other definitions for surpass that I've seen before include "Go one better" , "Transcend" , "Exceed" , "eclipse visible" , "Outstrip" .)