Does one stand out from the rest of the cast in it? (5,4)
I believe the answer is:
cameo role
'does' is the definition.
I know nothing about this answer so I can't tell whether this works.
'one stand out from the rest of the cast in it?' is the wordplay.
I cannot really understand how this works, but
'one' could be 'me' (a setter might use 'one' to humourously mean 'me') and 'me' is present in the answer.
'from' could be 'o' (I've seen this in other clues) and 'o' is found within the answer.
'of' could be 'o' and 'o' is found within the answer.
'it?' could be 'e' ('e' can mean 'electronic' which is similar to 'IT') and 'e' is found in the answer.
The remaining letters 'carl' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Another definition for cameo role that I've seen is " Small part in film".)