Writings finally turn out to be parody (4-2)
I believe the answer is:
send-up
'be parody' is the definition.
(I've seen this before)
'writings finally turn out' is the wordplay.
'finally' indicates one should take the final letters.
'turn out' becomes 'endup' (I've seen this in another clue).
The last letter of 'writings' is 's'.
's'+'endup'='SEND-UP'
'to' acts as a link.
(Other definitions for send-up that I've seen before include "Parody" , "Mockery" , "Spoof - jail" .)