Crossword Genius

One making regular entries in diary? (3)

Ross

I believe the answer is:

day

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'one making regular entries in diary?' is the definition.
I know that 'diary' relates to this answer. I also know that both the answer and definition are singular nouns

'regular entries in diary?' is the wordplay.
'regular entries in' indicates alternate letters.
The alternating letters of 'diary' are 'DAY'.

Can you help me to learn more?

(Other definitions for day that I've seen before include "Period of time" , "THIRD PART OF 23" , "Dawn to dusk" , "Particular date" , "24 hours" .)

I've seen this clue in The Guardian.
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