Crossword Genius

Small shelf for vehicle mounted on runners (6)

Ross

I believe the answer is:

sledge

'vehicle mounted on runners' is the definition.
(I've seen this before)

'small shelf' is the wordplay.
'small' becomes 's' (abbreviation - e.g. clothes size).
'shelf' becomes 'ledge' (synonyms).
's'+'ledge'='SLEDGE'

'for' acts as a link.

(Other definitions for sledge that I've seen before include "one could go downhill fast" , "Transport on snow - hammer" , "heavy tool" , "Vehicle for use in snow" , "Narrow cart with runners for travelling on snow" .)

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