Crossword Genius

Deviant tried filling a bag to create a distraction (9)

Ross

I believe the answer is:

sidetrack

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'a distraction' is the definition.
Although both the answer and definition are singular nouns, I can't understand how they can define each other.

'deviant tried filling a bag' is the wordplay.
'deviant' indicates anagramming the letters.
'filling' is an insertion indicator.
'a bag' becomes 'sack' (both can mean a container).
'tried' anagrammed gives 'idetr'.
'idetr' placed inside 'sack' is 'SIDETRACK'.

'to create' acts as a link.

Can you help me to learn more?

(Other definitions for sidetrack that I've seen before include "Divert" , "lead away" , "draw away" , "Bit of railway" , "Distract (from big issue)" .)

I've seen this clue in The Daily Express.
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