Unethical travelling amusement park heading off? (6)

I believe the answer is:

unfair

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

'unethical travelling amusement park heading off?' is the definition.
I can't judge whether this definition defines the answer.

'park heading off?' is the wordplay.
'park' becomes 'funfair' (funfair is a kind of park).
'heading off?' means to remove the first letter.
'funfair' with its first letter taken away is 'UNFAIR'.

Can you help me to learn more?

(Other definitions for unfair that I've seen before include "out of order" , "Biassed; not reasonable" , "Weighted" , "deceitful" , "Unjust, partial" .)

I've seen this clue in The Irish Times.

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.