Crossword Genius

Detestable hotel, so am changing (9)

Ross

I believe the answer is:

loathsome

'detestable' is the definition.
(I've seen this before)

'hotel so am changing' is the wordplay.
'changing' indicates an anagram.
'hotel'+'so'+'am'='hotelsoam'
'hotelsoam' is an anagram of 'LOATHSOME'.

(Other definitions for loathsome that I've seen before include "gross" , "Detestable" , "Repulsive" , "Hateful" , "Horrid" .)

I've seen this clue in The Globe and Mail.
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