Spoke about new frog hybrid, showing composure (9)
I believe the answer is:
sangfroid
'composure' is the definition.
(thesaurus)
'spoke about new frog hybrid' is the wordplay.
'spoke' becomes 'said' (I've seen this in another clue).
'about' indicates putting letters inside.
'new' becomes 'n' (abbreviation as in New Testament NT).
'hybrid' indicates anagramming the letters (a hybrid is a mixture).
'n'+'frog'='nfrog'
'nfrog' with letters rearranged gives 'ngfro'.
'said' enclosing 'ngfro' is 'SANGFROID'.
'showing' acts as a link.
(Another definition for sangfroid that I've seen is " Cool".)