Moderate urgent legislation’s passage (6)

I believe the answer is:

gentle

I'm a little stuck... Click here to teach me more about this clue!

'moderate' is the definition.
(I've seen this in another clue)

'urgent legislation's passage' is the wordplay.
'GENTLE' is hidden within the letters.
But, I am not sure how this is indicated.

Can you help me to learn more?

(Other definitions for gentle that I've seen before include "'Mild, soft, tender (6)'" , "Jane Eyre's kind person with a book? -- eternal greed (anag)" , "Merciful -- grub" , "amiable" , "Clement" .)

I've seen this clue in The Times.

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