A clue's solution after flight providing legal way out (6,6)
I believe the answer is:
escape clause
'way out' is the definition.
(thesaurus)
'a clue's solution after flight' is the wordplay.
'a clue's solution' becomes 'clause' (I can't explain this - if you can you should believe this answer much more).
'after' says to put letters next to each other.
'flight' becomes 'escape' (flight can mean an escape).
'clause' put after 'escape' is 'ESCAPE CLAUSE'.
'providing legal' is the link.
This may not be correct. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for escape clause that I've seen before include "Release mechanism" , "Way out of a contract" , "legal get-out" .)