Being led, struggling to win (2,3)
I believe the answer is:
in tow
'being led' is the definition.
(I've seen this in another clue)
'struggling to win' is the wordplay.
'struggling' indicates an anagram (the letters struggle or wriggle into a new form).
'to'+'win'='towin'
'towin' with letters rearranged gives 'IN TOW'.
(Other definitions for in tow that I've seen before include "getting carried along" , "Trailing behind" , "close behind" , "being pulled along" , "companion on journey" .)