Ridiculous muscles seen on Murdo when stripped (6)
I believe the answer is:
absurd
'ridiculous' is the definition.
(synonyms)
'muscles seen on murdo when stripped' is the wordplay.
I cannot really see how this works, but
'muscles' could be 'abs' (short for abdominal muscles) and 'abs' is found within the answer.
The remaining letters 'urd' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for absurd that I've seen before include "irrational" , "Derisory, preposterous" , "Highly illogical" , "Ludicrous, silly" , "Really ridiculous, silly" .)