Make off with metal by the sound of it (5)
I believe the answer is:
steal
'make off with' is the definition.
(I've seen this in another clue)
'metal by the sound of it' is the wordplay.
'metal' becomes 'steel' (steel is a metal alloy).
'by the sound of it' shows a homophone (sound like).
'steel' sounds like 'STEAL'.
(Other definitions for steal that I've seen before include "Make off with" , "Pinch" , "Take illegally" , "Pilfer" , "Shoplift" .)