Pushes ahead on the piste, perhaps (7)

I believe the answer is:

thrusts

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

'pushes' is the definition.
(thrusting is a kind of pushing)

I cannot understand how the rest of the clue works.

(Other definitions for thrusts that I've seen before include "Sudden lunges" , "Impels" , "drives" , "forces" , "jabs" .)

I've seen this clue in the Evening Standard.

Want a hint initially instead of a full solution? Install my app