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I toss bouquet out — completely timeless and ingratiating (10)

Ross

I believe the answer is:

obsequious

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'ingratiating' is the definition.
(thesaurus)

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(Other definitions for obsequious that I've seen before include "cringing?" , "Fawning" , "Sycophantic" , "Servile" .)

I've seen this clue in The Guardian.
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