Roman god of fire and metalworking (6)
I believe the answer is:
vulcan
'roman god of fire and metalworking' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for vulcan that I've seen before include "Roman smithing god" , "V-bomber; god" , "Roman god of fire and metalworking" , "Greek god of fire" , "Hot guy" .)