Hole clear in golf (7)
I believe the answer is:
opening
'hole' is the definition.
(an opening is a hole or gap)
'clear in golf' is the wordplay.
I cannot really see how this works, but
'clear' could be 'open' (similar in meaning) and 'open' is present in the answer.
'in' is present in the answer.
'golf' could be 'g' (phonetic alphabet: alpha, bravo, charlie etc.) and 'g' is found within the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for opening that I've seen before include "launch" , "Opportunity, start" , "Aperture or first night" , "Yawning" , "break" .)