Struggle against (6)
'struggle against' is the definition.
(resisting is a kind of struggling against)
This is all the clue.
(Other definitions for resist that I've seen before include "Stand firm against" , "Refuse to comply" , "Withstand, struggle against" , "Offer opposition to" , "Bar" .)
'struggle against' is the definition.
(thesaurus)
This is all the clue.
(Other definitions for combat that I've seen before include "Battle or fight" , "War; contest" , "Conflict" , "Take action to deal with - fight" , "type of jacket" .)
'struggle against' is the definition.
(synonyms)
This is all the clue.
(Other definitions for fight that I've seen before include "Strive - struggle" , "Contend" , "Campaign against - quarrel" , "Box" , "Bundle" .)