Against rigid price control for winter motoring (10)

I believe the answer is:

antifreeze

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

'winter motoring' is the definition.
Although both the answer and definition are singular nouns, I don't see how they can define each other.

'against rigid price control' is the wordplay.
'against' becomes 'anti' (prefix meaning against).
'rigid price control' becomes 'freeze' (keeping prices the same).
'anti'+'freeze'='ANTIFREEZE'

'for' acts as a link.

Can you help me to learn more?

(Other definitions for antifreeze that I've seen before include "Ethylene glycol" , "Winter radiator additive" , "Car radiator additive" , "Winter essential in engines" , "not needed for a long time in Hell?" .)

I've seen this clue in The Globe and Mail.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.