Crossword Genius

Training guilt on us is tacky (9)

Ross

I believe the answer is:

glutinous

'tacky' is the definition.
(thesaurus)

'training guilt on us' is the wordplay.
'training' indicates an anagram (to train can mean to grow something into a shape).
'guilt'+'on'='guilton'
'guilton' is an anagram of 'glutino'.
'glutino'+'us'='GLUTINOUS'

'is' is the link.

(Other definitions for glutinous that I've seen before include "Sticky" , "not easy to shake off?" .)

I've seen this clue in The Daily Express.
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