One lawyer in Essen drunk or sober, in a practical way? (8)

I believe the answer is:

sensible

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'sober in a practical way?' is the definition.
I can't tell whether this definition defines the answer.

'one lawyer in essen drunk' is the wordplay.
'one' becomes 'i' (Roman numeral).
'lawyer' becomes 'bl' (I've seen this in other clues).
'in' indicates putting letters inside.
'drunk' is an anagram indicator.
'i'+'bl'='ibl'
'essen' anagrammed gives 'sense'.
'ibl' put inside 'sense' is 'SENSIBLE'.

'or' is the link.

Can you help me to learn more?

(Other definitions for sensible that I've seen before include "Judicious line, Bess" , "Well-advised, prudent" , "Practical, showing sound thinking" , "'Reasonable, judicious (8)'" , "Rational" .)

I've seen this clue in the Irish Times.

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