Crossword Genius

Cashing in? It’s true, I confess (9)

Ross

I believe the answer is:

realising

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'cashing in?' is the definition.
Both the answer and definition are present participle verbs.
Perhaps they are linked in a way I don't understand?

'true i confess' is the wordplay.
'true' becomes 'real' (similar in meaning).
'confess' becomes 'sing' (I've seen this before).
'real'+'i'+'sing'='REALISING'

'it's' acts as a link.

Can you help me to learn more?

(Other definitions for realising that I've seen before include "Making" , "Becoming aware" , "Converting goods or property into cash" , "converting things into cash" , "Converting by selling - say a Riesling" .)

I've seen this clue in The Times.
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