Boss one likely to blunder socially? (6)
I believe the answer is:
gaffer
'boss' is the definition.
(gaffer can informally mean a boss)
'blunder socially?' is the wordplay.
'blunder' becomes 'gaffe' (gaffe is a kind of blunder).
'socially?' becomes 'r' (I can't explain this - if you can you should give a lot more credence to this answer).
'gaffe'+'r'='GAFFER'
'one likely to' acts as a link.
I am not very happy about this link. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for gaffer that I've seen before include "Senior electrician on a film/TV set" , "one prone to blunder socially?" , "man in charge" , "Boss, overseer" , "Supervisor; chief electrician" .)