Crossword Genius

One sees it as good sense (6)

Ross

I believe the answer is:

reason

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

'good sense' is the definition.

'one sees it' is the wordplay.
I cannot quite see how this works, but
'one' could be 'a' and 'a' is found within the answer.
'it' could be 'e' ('e' can mean 'electronic' which is similar to 'IT') and 'e' is found in the answer.
This explanation may well be incorrect...

'as' acts as a link.

Can you help me to learn more?

(Other definitions for reason that I've seen before include "Motivation or cause" , "Ability to think rationally" , "Cause, explanation" , "Motive for an action" , "Cause or motive" .)

I've seen this clue in the Evening Standard.
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