Soldiers find acceptable range of food (4)
I believe the answer is:
menu
'range of food' is the definition.
'soldiers find acceptable' is the wordplay.
'soldiers' becomes 'men' (men can mean a group of soldiers).
'find' means one lot of letters go next to another.
'acceptable' becomes 'u' (as in U and non-U speech).
'men'+'u'='MENU'
(Other definitions for menu that I've seen before include "Card" , "List of (computer or food) items" , "Tariff" , "Carte du jour" , "list of available courses" .)