Be off like the clappers (be off with the great energy)

Be off like water off a duck a back (make no impression on someone)

To keep at bay (to keep something under control like excess, crime etc)

Blow the gaff (to disclose a secret)

Curry favour (to flatter somebody in order to get a favour)

within an ace of (within reach or access)

to eat a humble pie (to meet a humiliating defeat)