Jolly Joseph only gets woman a student (6)
I believe the answer is:
jovial
'jolly' is the definition.
(I know that jolly can be written as jovial)
'gets woman a student' is the wordplay.
'gets' becomes 'jo' (I can't justify this - if you can you should believe this answer much more).
'woman' becomes 'Vi' (short for Violet).
'student' becomes 'l' (as in L-plates for learner drivers).
'jo'+'vi'+'a'+'l'='JOVIAL'
'joseph only' is the link.
This may not be right. Some or all of it may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for jovial that I've seen before include "'Jolly, merry (6)'" , "Cheerful, friendly" , "Hearty and cheerful like Jupiter" , "Genial, joyous" , "Happy and cheerful" .)