Girl without time for a man (5)
I believe the answer is:
marty
'girl' is the definition.
'without time for a man' is the wordplay.
'without time' becomes 'arty' (I am not sure about this - if you are sure you should believe this answer much more).
'for' is a charade indicator (letters next to each other) (I've seen this in other clues).
'a man' becomes 'm' (M is an abbreviation for male or masculine).
'arty' put after 'm' is 'MARTY'.
Can you help me to learn more?
(Another definition for marty that I've seen is " My art (anag) - 1955 film".)