Bird heading off, soaring, showing new life (9)
I believe the answer is:
renascent
'bird heading off soaring showing new life' is the definition.
I can't tell whether this defines the answer.
'bird heading off soaring showing new' is the wordplay.
'bird' becomes 'wren' (wren is a kind of bird).
'heading off' means to remove the first letter.
'soaring showing new' becomes 'ascent' (I am not sure about this - if you are sure you should believe this answer much more).
'wren' with its first letter taken away is 'ren'.
'ren'+'ascent'='RENASCENT'
Can you help me to learn more?
(Other definitions for renascent that I've seen before include "Becoming active again" , "Making a comeback" , "Entrances (anag.); having new vitality" , "coming back to life again" , "becoming effective again" .)