Heard to enquire of second person if it's crooked (5)
I believe the answer is:
askew
'it's crooked' is the definition.
(similar in meaning)
'heard to enquire of second person' is the wordplay.
I cannot really understand how this works, but
'enquire' could be 'ask' (to enquire is to ask or question) and 'ask' is found in the answer.
'second person' could be 'e' (2nd letter of 'person') and 'e' is found in the answer.
A single letter 'w' remains which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'if' acts as a link.
Can you help me to learn more?
(Other definitions for askew that I've seen before include "Towards one side, awry" , "Not true" , "irregular" , "Oblique" , "in an odd position" .)