Sailor -- isn't he drunk, having drunk this? (8)

I believe the answer is:

absinthe

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'drunk this?' is the definition.
The definition suggests a singular noun which matches the answer.

'sailor isn't he drunk' is the wordplay.
'sailor' becomes 'ab' (abbreviation for able seaman).
'drunk' indicates an anagram.
'isnt'+'he'='isnthe'
'isnthe' with letters rearranged gives 'sinthe'.
'ab'+'sinthe'='ABSINTHE'

'having' acts as a link.

Can you help me to learn more?

(Other definitions for absinthe that I've seen before include "Strong liquour in the basin?" , "Green liqueur flavoured with wormwood and anise" , "Green aniseed liqueur" , "alcohol" , "Potent aniseed-flavoured drink" .)

I've seen this clue in The Telegraph.

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