Glad to be recovered from exposure? (4,3,4)
I believe the answer is:
over the moon
'glad' is the definition.
(over the moon means very happy)
'recovered from exposure?' is the wordplay.
'recovered from' becomes 'over' (as in being over an illness).
'exposure?' becomes 'themoon' (I can't justify this - if you can you should believe this answer much more).
'over'+'themoon'='OVER THE MOON'
'to be' is the link.
Can you help me to learn more?
(Other definitions for over the moon that I've seen before include "Jumping for joy?" , "Greatly elated" , "Sent" , "euphoric" , "So happy" .)