Reveal no curve can be straightened out! (7)

I believe the answer is:

uncover

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'be straightened out' is the definition.
I can't judge whether this definition defines the answer.

'reveal no curve' is the wordplay.
'reveal' indicates anagramming the letters.
'no'+'curve'='nocurve'
'nocurve' anagrammed gives 'UNCOVER'.

'can' is the link.

Can you help me to learn more?

(Other definitions for uncover that I've seen before include "bare" , "Make visible" , "Reveal - take top off" , "Take the lid off" , "Strip off" .)

I've seen this clue in the Evening Standard.

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