Picked up someone going without waterproof coat? (7)

I believe the answer is:

lacquer

I'm a little stuck... Click here to teach me more about this clue!

'coat?' is the definition.
(I know that lacquer is a type of coat)

I cannot understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for lacquer that I've seen before include "Glossy resin coat" , "Hard coating for wood" , "Staining agent" , "16 21 [INDIAN IMPORT]" , "Hard shiny covering on wood and metal" .)

I've seen this clue in The Independent.

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