Comes to a settlement under the influence of drugs (8)

I believe the answer is:

comatose

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'under the influence of drugs' is the definition.
I can't judge whether this definition defines the answer.

'comes to a settlement' is the wordplay.
'settlement' is an anagram indicator.
'comes'+'to'+'a'='comestoa'
'comestoa' is an anagram of 'COMATOSE'.

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(Other definitions for comatose that I've seen before include "Somnolent" , "Deeply unconscious" , "Come to as in drowsy condition" , "Sandman called" , "Senseless, unconscious" .)

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

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