Slide round the top (3)

I believe the answer is:

lid

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

'the top' is the definition.
(lid is a kind of top)

'slide' is the wordplay.
'LID' is hidden in amongst the letters.
However, I am not sure how this is indicated.

'round' acts as a link.

Can you help me to learn more?

(Other definitions for lid that I've seen before include "Top crust of pie" , "Cover for box or eye" , "Pie crust; cover" , "Top or cover" , "Hat" .)

I've seen this clue in The Mirror.

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