It's red, perhaps, so go ahead! (6)

I believe the answer is:

stride

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'go ahead' is the definition.
The answer and definition can be both acts as well as being singular nouns.
Perhaps there's a link between them I don't understand?

'it's red perhaps' is the wordplay.
'perhaps' is an anagram indicator.
'its'+'red'='itsred'
'itsred' with letters rearranged gives 'STRIDE'.

'so' acts as a link.

Can you help me to learn more?

(Other definitions for stride that I've seen before include "march" , "Long walking step" , "Long step of direst kind" , "A lengthy step" , "Long decisive step" .)

I've seen this clue in the Evening Standard.

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