Crossword Genius

Straighten out former nurse (6)

Ross

I believe the answer is:

extend

'straighten' is the definition.
(I know that extend is a kind of straighten)

'former nurse' is the wordplay.
'former' becomes 'ex' (prefix meaning former or onetime).
'nurse' becomes 'tend' (tend can mean to nurse or look after).
'ex'+'tend'='EXTEND'

'out' acts as a link.

(Other definitions for extend that I've seen before include "continue" , "Stretch out - enlarge" , "Provide challenge" , "Stretch out, say the hand of friendship" , "Carry on" .)

I've seen this clue in The Telegraph.
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