Son champing to leave hospital department, firm being agreeable (9)
I believe the answer is:
simpatico
'agreeable' is the definition.
(I've seen this in another clue)
'son champing to leave hospital department firm' is the wordplay.
I cannot quite see how this works, but
'son' could be 's' (genealogical abbreviation for son) and 's' is found within the answer.
'firm' could be 'pat' (I've seen this in another clue) and 'pat' is located in the answer.
This explanation may well be incorrect...
'being' is the link.
Can you help me to learn more?
(Other definitions for simpatico that I've seen before include "Congenial company" , "Pleasant" , "Nice" , "Likeable, easy to get on with" , "pleasing" .)