Limits on ingenious party game for kids (1,3)

I believe the answer is:

i spy

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This clue might be a double definition.

'limits on ingenious party' is the first definition.
The definition suggests a singular noun which matches the answer.

'game for kids' is the second definition.
'I Spy' can be an answer for 'game' (I Spy is a guessing game). I'm unsure of the 'for kids' bit.

Can you help me to learn more?

(Other definitions for i spy that I've seen before include "One ac's [BOND] admission" , "looking game" , "Child's guessing game" , "Game played with young children" , "admission by Mata Hari?" .)

I've seen this clue in the Sydney Morning Herald.

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