Crossword Genius

Sent two letters in one short day (5)

Ross

I believe the answer is:

wired

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

'sent two letters' is the definition.
The answer and definition can be both to do with communicating as well as being past participle verbs.
Maybe there's a link between them I don't understand?

'one short day' is the wordplay.
'one' becomes 'wire' (I can't explain this - if you can you should believe this answer much more).
'short day' becomes 'd' (abbreviation for day; 'short' indicates a short form).
'wire'+'d'='WIRED'

'in' acts as a link.

Can you help me to learn more?

(Other definitions for wired that I've seen before include "having Internet connection" , "Equipped for electrical connection" , "Bugged" , "set up for broadcast?" , "Equipped for electricity" .)

I've seen this clue in the Evening Standard.
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