Crossword Genius

Something broadcast about parking in haste (5)

Ross

I believe the answer is:

speed

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

'haste' is the definition.
(I've seen this before)

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for speed that I've seen before include "Expedition" , "Move quickly (and illegally?)" , "The going rate" , "Pace or tempo" , "Travel quickly" .)

I've seen this clue in the Evening Standard.
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