Becoming active again, frantically earns a little money (9)
I believe the answer is:
renascent
'becoming active again' is the definition.
(I've seen this before)
'frantically earns a little money' is the wordplay.
'frantically' indicates an anagram (I've seen this in other clues).
'a little money' becomes 'cent' (I've seen this before).
'earns' with letters rearranged gives 'renas'.
'renas'+'cent'='RENASCENT'
(Other definitions for renascent that I've seen before include "Making a comeback" , "Entrances (anag.); having new vitality" , "becoming effective again" , "Becoming active again" , "coming back to life again" .)