Relevant or cheeky? I'm off (9)
I believe the answer is:
pertinent
'relevant' is the definition.
(similar in meaning)
'cheeky? i'm off' is the wordplay.
I cannot really understand how this works, but
'cheeky?' could be 'pert' (pert can mean cheeky or insolent) and 'pert' is found in the answer.
'i'm' could be 'i' (I've seen this in other clues) and 'i' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
'or' is the link.
Can you help me to learn more?
(Other definitions for pertinent that I've seen before include "Apposite" , "Relevent, material" , "Appropriate" , "fitting" , "Relevant, to the point" .)