Archer stole warm crusts in mid-range (6)
I believe the answer is:
bowman
'archer' is the definition.
(synonyms)
'stole warm crusts in mid-range' is the wordplay.
'stole' becomes 'boa' (I've seen this before).
'crusts' means to remove the middle letters (I've seen 'crust' mean this (the outside or crust of the word is used)).
'in' means one lot of letters goes inside another.
'mid' means to look at the middle letters.
'warm' with its centre taken out is 'wm'.
The middle letter of 'range' is 'n'.
'boa' placed around 'wm' is 'bowma'.
'bowma'+'n'='BOWMAN'
(Other definitions for bowman that I've seen before include "Tell" , "Archer" , "one of The Archers" , "violinist!" , "first of eight" .)