Crossword Genius

Principal gets remainder of car fitting (4-4)

Ross

I believe the answer is:

head-rest

I'm a little stuck... Click here to teach me more about this clue!

'principal gets remainder of car fitting' is the definition.
I can't tell whether this defines the answer.

'principal gets remainder' is the wordplay.
'principal' becomes 'head' (synonyms).
'gets' means one lot of letters go next to another.
'remainder' becomes 'rest' (synonyms).
'head'+'rest'='HEAD-REST'

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.
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.