Move lightly over and request winter sport gear (3,4)

I believe the answer is:

ski mask

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

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

'move lightly over and request' is the wordplay.
'move' becomes 'ski' (skiing is a kind of moving).
'lightly over' becomes 'm' (I can't explain this - if you can you should believe this answer much more).
'and' says to put letters next to each other.
'request' becomes 'ask' (to ask is to request something).
'ski'+'m'+'ask'='SKI MASK'

Can you help me to learn more?

(Other definitions for ski mask that I've seen before include "protective winter gear" , "bank robber's protection" .)

I've seen this clue in the Sydney Morning Herald.

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