Getting on well and clearly brave about it (2,6,7)
I believe the answer is:
no spring chicken
'clearly brave about it' is the definition.
I don't know anything about this answer so I cannot tell whether it can be defined by this definition.
'getting on well' is the wordplay.
I cannot really understand how this works, but
'well' could be 'spring' (a well is a spring of water) and 'spring' is found within the answer.
'getting on' could be 'nochicken' (both can mean 'no longer young') and 'nochicken' is found within the leftover letters.
No letters remain.
This explanation may well be incorrect...
'and' is the link.
Can you help me to learn more?
(Other definitions for no spring chicken that I've seen before include "Mature" , "One who's seasoned" , "Veteran" , "old?" , "not young any more" .)