Crossword Genius

Fear taking time off is wrong (5)

Ross

I believe the answer is:

error

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

This clue could be a double definition.

'fear taking time' is the first definition.
Although both the answer and definition are singular nouns, I don't understand how they can define each other.

'is wrong' is the second definition.
(I've seen this before)

'off' acts as a link.

Can you help me to learn more?

(Other definitions for error that I've seen before include "Boob" , "Mistake or mishap" , "Solecism" , "A mistake or inaccuracy" , "Blunder, slip" .)

I've seen this clue in the Evening Standard.
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