Damage in the rush? (4)
I believe the answer is:
tear
I believe this clue is a double definition.
'damage' is the first definition.
(thesaurus)
'the rush?' is the second definition.
(tear is a kind of rush)
'in' acts as a link.
(Other definitions for tear that I've seen before include "It's secreted by the lachrymal gland" , "Rip or lacerate" , "Rip - eye moisture" , "Rend; travel in haste" , "Split - career" .)