Safely grinds up okra (5,7)

I believe the answer is:

ladys fingers

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'okra' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.

'safely grinds up' is the wordplay.
'up' indicates an anagram (letters get chucked up).
'safely'+'grinds'='safelygrinds'
'safelygrinds' with letters rearranged gives 'LADYS FINGERS'.

Can you help me to learn more?

(Another definition for ladys fingers that I've seen is " Okra, gumbo".)

I've seen this clue in The Times.

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