Wooden salt shaker (4)

I believe the answer is:

slat

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

'shaker' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Maybe they are linked in a way I don't understand?

'wooden salt' is the wordplay.
'salt' can be anagrammed to 'SLAT'.
But, I am not sure how the anagram is indicated.

Can you help me to learn more?

(Other definitions for slat that I've seen before include "Thin strip" , "Part of a Venetian blind" .)

I've seen this clue in the Evening Standard.

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