Large buffoon to stand idly by (4)
I believe the answer is:
loaf
'stand idly by' is the definition.
I can't tell whether this definition defines the answer.
'large buffoon' is the wordplay.
'large' becomes 'L' (eg in clothes sizes).
'buffoon' becomes 'oaf' (I've seen this in another clue).
'l'+'oaf'='LOAF'
'to' is the link.
Can you help me to learn more?
(Other definitions for loaf that I've seen before include "Suffer loss of credibility" , "more than just crumbs!" , "Lounge about" , "Baguette or cob, perhaps" , "Some bread; 10 (slang)" .)