Smooth, like well-oiled locks (7)

I believe the answer is:

pomaded

'smooth like well-oiled locks' is the definition.
The answer and definition are different parts of speech. However, past participle verbs and adjectives can occasionally define each other.

This is all the clue.

I've seen this clue in The Guardian.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.