Nanny off the booze before noon sure to get in a state (3,5)

'nanny' is the definition.
(dry nurse is a kind of nanny)

'the booze before noon sure to get in a state' is the wordplay.
I cannot really understand how this works, but
'noon' could be 'n' (abbreviation for noon) and 'n' is located in the answer.
an anagram of 'sure' is 'urse' which is located in the answer.
The remaining letters 'dry' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).

'off' is the link.

Can you help me to learn more?