Go round and round (4 letters)

Spiral staircase, essentially (5 letters)

Mortarboard pendant (6 letters)

Its purpose is in sight (3 letters)

__ & Perrins (sauce brand) (3 letters)

Ramble (7 letters)

Hint for Hercule (4 letters)

Diplomats (8 letters)

Give the once-over (3 letters)

Spin (4 letters)

Kook (3 letters)