A new king is suppressed by others. most disgusting (7)

I believe the answer is:

rankest

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'most disgusting' is the definition.
Both the answer and definition are superlative adjectives. Perhaps there's a link between them I don't understand?

'a new king is suppressed by others' is the wordplay.
'new' becomes 'n' (common abbreviation eg NT for New Testament).
'king' becomes 'K' (abbreviation for king in chess).
'is suppressed by' indicates putting letters inside (I've seen this in other clues).
'others' becomes 'rest' (I've seen this before).
'a'+'n'+'k'='ank'
'ank' inserted inside 'rest' is 'RANKEST'.

Can you help me to learn more?

(Other definitions for rankest that I've seen before include "most offensive" , "most objectionable" .)

I've seen this clue in The Hindu.

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