Engaged in ceasefire, ignoring command (5)
I believe the answer is:
reign
'command' is the definition.
(thesaurus)
'engaged in ceasefire ignoring' is the wordplay.
'engaged in' says the answer is hidden in the clue.
'REIGN' is hidden within 'ceasefire ignoring'.
(Other definitions for reign that I've seen before include "Sit on a throne" , "Period of the rule of a sovereign" , "Spell in office" , "Sovereignty" , "Control" .)