Ride a bit awkwardly, prompting harangue (8)

I believe the answer is:

diatribe

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'prompting harangue' is the definition.
'diatribe' can be an answer for 'harangue' (I've seen this before). I'm not sure about the 'prompting' bit.

'ride a bit awkwardly' is the wordplay.
'awkwardly' is an anagram indicator.
'ride'+'a'+'bit'='rideabit'
'rideabit' with letters rearranged gives 'DIATRIBE'.

Can you help me to learn more?

(Other definitions for diatribe that I've seen before include "Vitriolic speech" , "Long speech" , "Philippic" , "Lengthy harangue" , "Torrent of abuse" .)

I've seen this clue in The Times.

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