Moved smoothly into a slide? (6)

I believe the answer is:

sailed

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'moved' is the definition.
(sailing is a kind of moving)

'smoothly into a slide?' is the wordplay.
'a slide' anagrams to 'SAILED'.
Though, I am unsure how this is indicated.

Can you help me to learn more?

(Other definitions for sailed that I've seen before include "Travelled by wind over water" , "Travelled by boat" .)

I've seen this clue in the Evening Standard.

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