Crossword Genius

Regret being incarcerated again? (6)

Ross

I believe the answer is:

repent

I'm a little stuck... Click here to teach me more about this clue!

'regret' is the definition.
(I know that regret can be written as repent)

'being incarcerated again?' is the wordplay.
'being' becomes 'rep' (rep is a kind of being).
'incarcerated again?' becomes 'ent' (I can't explain this - if you can you should believe this answer much more).
'rep'+'ent'='REPENT'

Can you help me to learn more?

(Other definitions for repent that I've seen before include "Be contrite, ye sinners" , "Express remorse for sin" , "creeping along the ground" , "Feel regret/remorse" , "Be ashamed" .)

I've seen this clue in The Sun.
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