What you must do for yourself? (4)

I believe the answer is:

fend

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'what you must do for yourself?' is the definition.
The definition suggests a singular noun which matches the answer.

This is the entire clue.

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(Other definitions for fend that I've seen before include "Ward off from offender" , "Manage (usually for oneself)" , "Try to manage without help" , "Ward (off); manage (for oneself)" .)

I've seen this clue in the Evening Standard.

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