mc5 - Obscure vault 99 (7)

It's the cryptic crossword discussion game. Tease each other with clues, help each other with the dailies, educate the beginners, whatever.

*ting*

That was quick, well done. Didn't expect the Intended to be picked up so quickly.

In that case, how about ...

Uncommon Ale; one I digest (never my first) - and only very rarely (4,2,1,4,4)

I'm thinking it's ONCE IN A BLUE MOON but can't work out why.

A new clue for another different word

I meant to add this:
Hesitate about small business centre (4)

[Chalky] CO (small business) + RE ("er" backwards).