Turning up for a bike race before finale (9)
I believe the answer is:
attending
'turning up' is the definition.
(to turn up at an event is to attend it)
'a bike race before finale' is the wordplay.
'bike race' becomes 'tt' (short for time trial, type of race).
'before' says to put letters next to each other.
'finale' becomes 'ending' (I've seen this in another clue).
'a'+'tt'+'ending'='ATTENDING'
'for' acts as a link.
(Other definitions for attending that I've seen before include "Being present at (function/event)" , "Listening or being present at" , "Paying attention" .)