Moved quickly - discovered with time to spare (5)

I believe the answer is:

raced

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'moved' is the definition.
(racing is a kind of moving)

'quickly discovered with time to spare' is the wordplay.
'quickly' becomes 'express' (I've seen this before).
'discovered' says to take the centre (dis-covered - outer letters removed).
'with time to spare' becomes 'aced' (I am not sure about this - if you are sure you should believe this answer much more).
The middle of 'express' is 'r'.
'r'+'aced'='RACED'

Can you help me to learn more?

(Other definitions for raced that I've seen before include "Took part in speed contest" , "Dashed" , "Competed" , "Travelled at speed" , "Operated at excessive speed" .)

I've seen this clue in The Independent.

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