Baby's loo is slightly crazy! (1,6,5)

I believe the answer is:

a little potty

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

'baby's loo' is the definition.
I know nothing about this answer so I cannot tell whether it can be defined by this definition.

'slightly crazy' is the wordplay.
'slightly' becomes 'alittle' (I've seen this in another clue).
'crazy' becomes 'potty' (I've seen this before).
'alittle'+'potty'='A LITTLE POTTY'

'is' acts as a link.

Can you help me to learn more?

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

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