Manoeuvre near a battlefield (5)
I believe the answer is:
arena
'battlefield' is the definition.
(I've seen this before)
'manoeuvre near a' is the wordplay.
'manoeuvre' indicates an anagram.
'near' anagrammed gives 'aren'.
'aren'+'a'='ARENA'
(Other definitions for arena that I've seen before include "Area surrounded by seating, for sports, etc." , "Earls Court?" , "Place of public contest" , "The place of action" , "Wembley, for example" .)