Group of kittens (3)

I believe the answer is:

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

'group' is the definition.
Both the answer and definition are adjectives. Maybe you can see an association between them that I don't see?

'of kittens' is the wordplay.
'of' says the answer is hidden in the clue.
'TEN' is hidden within 'kittens'.

Can you help me to learn more?

(Other definitions for ten that I've seen before include "Half a score" , "Base of decimal system" , "Roman numeral X" , "honour" , "Dudley Moore/Bo Derek film" .)

I've seen this clue in the Evening Standard.

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