Did finish off contrary study becoming consumed (5)

I believe the answer is:

dined

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'consumed' is the definition.
The answer and definition can be both related to consumption as well as being past participle verbs.
Maybe they are linked in a way I don't understand?

'did finish off contrary study' is the wordplay.
'finish off' means to remove the last letter.
'contrary' says the letters should be written backwards.
'study' becomes 'den' (den can mean an office or study).
'den' back-to-front is 'ned'.
'did' with its last letter taken away is 'di'.
'di'+'ned'='DINED'

'becoming' acts as a link.

Can you help me to learn more?

(Other definitions for dined that I've seen before include "Ate a meal" , "Had supper" .)

I've seen this clue in The Irish Times.

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