One perhaps, withheld from someone you don't like (3,4,2,3)
I believe the answer is:
the time of day
'one' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'withheld from someone you don't like' is the wordplay.
I cannot quite understand how this works, but
'from' could be 'o' (I've seen this in other clues) and 'o' is found in the answer.
'someone' could be 'da' (D.A. is an example) and 'da' is located in the answer.
'like' could be 'y' (similar in meaning) and 'y' is found within the answer.
This may be the basis of the clue (or it may be nonsense).
'perhaps' is the link.
Can you help me to learn more?
(Other definitions for the time of day that I've seen before include "Hand-held computer" , "It is passed in conversation" .)