Stumbling, otherwise, around bar (5)
I believe the answer is:
ingot
'bar' is the definition.
(block of metal, eg a bar of gold)
'stumbling otherwise around' is the wordplay.
'around' indicates the answer is hidden within the clue.
'INGOT' is hidden within 'stumbling otherwise'.
(Other definitions for ingot that I've seen before include "this must be cast" , "Block of, eg, gold" , "Form of gold or silver" , "Block of precious metal" , "Piece of cast metal" .)