Crossword Genius

Absolutely ridiculous nite-bank? (8)

Ross

I believe the answer is:

entirely

'absolutely' is the definition.
(synonyms)

'ridiculous nite-bank?' is the wordplay.
'ridiculous' is an anagram indicator.
'bank?' becomes 'rely' (to bank on something is to rely on it).
'nite' anagrammed gives 'enti'.
'enti'+'rely'='ENTIRELY'

(Other definitions for entirely that I've seen before include "Wholly, totally" , "Wholly, completly" , "Wholly and completely" , "without qualification _" , "Without reservation" .)

I've seen this clue in The Sun.
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