Stay at the front? (5)
I believe the answer is:
truce
'stay' is the definition.
(thesaurus)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for truce that I've seen before include "move towards permanent peace" , "Temporary halt in hostilities" , "Agreed break in hostilities" , "Cease-fire, armistice" , "Respite" .)