Crossword Genius

Reveal verse that hurt Peter (9)

Ross

I believe the answer is:

vouchsafe

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'reveal' is the definition.
The definition and answer can be both to do with communicating as well as being verbs in their base form.
Maybe they are linked in a way I don't understand?

'verse that hurt peter' is the wordplay.
'verse' becomes 'v'.
'that hurt' becomes 'ouch' (expression of pain).
'peter' becomes 'safe' (slang term).
'v'+'ouch'+'safe'='VOUCHSAFE'

Can you help me to learn more?

(Other definitions for vouchsafe that I've seen before include "Deign to give" , "Give or grant, perhaps in condescending manner" , "Condescend to grant" , "Grant graciously" , "Give in gracious manner - have focus on" .)

I've seen this clue in The Times.
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