Make an effort (5)
'make an effort' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for strive that I've seen before include "Venture" , "Make every effort" , "Vie; compete" , "Try extremely hard" , "Work hard - compete" .)
'make an effort' is the definition.
(exerting oneself by making a special effort)
This is all the clue.
(Other definitions for exert that I've seen before include "Act upon" , "Apply (pressure)" , "Bring into use, apply" , "Strive" , "Bring into use, strength or influence" .)