Boss putting blunder right (6)
I believe the answer is:
gaffer
'boss' is the definition.
(gaffer can informally mean a boss)
'blunder right' is the wordplay.
'blunder' becomes 'gaffe' (gaffe is a kind of blunder).
'right' becomes 'r' (abbreviation).
'gaffe'+'r'='GAFFER'
'putting' is the link.
(Other definitions for gaffer that I've seen before include "Boss, overseer" , "Senior electrician on a film/TV set" , "one securing large fish" , "one prone to blunder socially?" , "Chief electrician on a film set" .)