Crossword Genius

Noisily eat cold late morning meal without starter (6)

Ross

I believe the answer is:

crunch

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'noisily eat cold' is the definition.
I can't tell whether this definition defines the answer.

'late morning meal without starter' is the wordplay.
'late' becomes 'dec'.
'morning meal' becomes 'brunch' (a cross between breakfast and lunch).
'without' indicates named letters should be taken away.
'starter' becomes 'deb' (short for debutante, girl debuting in society ).
'dec'+'brunch'='decbrunch'
'decbrunch' with 'deb' taken out is 'CRUNCH'.

Can you help me to learn more?

(Other definitions for crunch that I've seen before include "Bite noisily - moment of decision" , "Process (lots of data)" , "Decisive moment" , "Moment of truth" , "Chew something hard" .)

I've seen this clue in The Independent.
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