Exuberant letter passionate about English scene (12)
I believe the answer is:
effervescent
'exuberant' is the definition.
(thesaurus)
'letter passionate about english scene' is the wordplay.
I cannot quite see how this works, but
'letter' could be 'en' (I've seen this in other clues) and 'en' is found within the answer.
'about' could be 'c' (abbreviation for circa) and 'c' is located in the answer.
'english' could be 'e' (abbreviation) and 'e' is found in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for effervescent that I've seen before include "Fizzy" , "Sparkling" , "Bubbly" .)