Draw near to support rally (8)
I believe the answer is:
comeback
'rally' is the definition.
(I've seen this before)
'draw near to support' is the wordplay.
'draw near' becomes 'come' (I've seen this before).
'to support' becomes 'back' (back is a kind of support).
'come'+'back'='COMEBACK'
(Other definitions for comeback that I've seen before include "return appearance" , "rejoinder" , "Make a . . . . . . . . - return to the fray" , "Return to former success" , "A return to prominence" .)