Royal divorcee flipping exaggerated, as before (5)
I believe the answer is:
ditto
'as before' is the definition.
(ditto means the same as previously mentioned)
'royal divorcee flipping exaggerated' is the wordplay.
'royal divorcee' becomes 'di' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'flipping' is a reversal indicator.
'exaggerated' becomes 'OTT' (short for 'over the top').
'ott' backwards is 'tto'.
'di'+'tto'='DITTO'
Can you help me to learn more?
(Other definitions for ditto that I've seen before include "The same thing" , "Duplicate" , "Dot it for the same again" , "that which has been said" , "As given above" .)