Son guided wheelless conveyance (4)

I believe the answer is:

sled

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'wheelless conveyance' is the definition.
'sled' can be an answer for 'conveyance' (sled is a kind of conveyance). I'm not certain of the 'wheelless' bit.

'son guided' is the wordplay.
'son' becomes 's' (genealogical abbreviation for son).
'guided' becomes 'led' (similar in meaning).
's'+'led'='SLED'

Can you help me to learn more?

(Other definitions for sled that I've seen before include "Sleigh" , "Winter transport" , "Snow transport" , "Goods vehicle" , "American toboggan" .)

I've seen this clue in The Times.

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