Range one voluntarily holds back (4)
I believe the answer is:
oven
'range' is the definition.
(I've seen this before)
'one voluntarily holds back' is the wordplay.
'holds' indicates the answer is hidden within the clue.
'back' is a reversal indicator.
'nevo' is hidden in the letters of 'one voluntarily'.
'nevo' backwards is 'OVEN'.
(Other definitions for oven that I've seen before include "Furnace, kiln" , "Use it to roast" , "Cooker; furnace" , "Place for burning" , "Part of a cooker" .)