Crossword Genius

A pound put on for service (3)

Ross

I believe the answer is:

alb

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'service' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps you can see an association between them that I can't see?

'a pound put on' is the wordplay.
'pound' becomes 'lb' (abbreviation for the unit of weight).
'put on' says to put letters next to each other (some letters go on or after others).
'a'+'lb'='ALB'

'for' is the link.

Can you help me to learn more?

(Other definitions for alb that I've seen before include "Long white robe worn by Christian priest" , "ecclesiastical garment" , "Devotional vestment" , "clerical belongings" , "Cover" .)

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