Court disaster, like pro donning sportswear (3,3,2)
I believe the answer is:
ask for it
'court disaster' is the definition.
I don't know anything about this answer so I can't tell whether this works.
'like pro donning sportswear' is the wordplay.
'like' becomes 'as'.
'pro' becomes 'for' (I've seen this before).
'donning' indicates putting letters inside (I've seen this in other clues).
'sportswear' becomes 'kit' (I can't justify this - if you can you should believe this answer much more).
'for' put into 'kit' is 'kforit'.
'as'+'kforit'='ASK FOR IT'
Can you help me to learn more?
(Other definitions for ask for it that I've seen before include "Informally, invite or deserve trouble" , "court problems?" , "Invite ill" , "Invite trouble, behave provocatively" , "To try to get hold of computer people" .)