Crossword Genius

Is one thrown in unsettled car dispute? (7,3)

Ross

I believe the answer is:

custard pie

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

'is one thrown' is the definition.
I can't tell whether this defines the answer.

'unsettled car dispute?' is the wordplay.
'unsettled' indicates anagramming the letters.
'car'+'dispute'='cardispute'
'cardispute' with letters rearranged gives 'CUSTARD PIE'.

'in' acts as a link.

Can you help me to learn more?

(Other definitions for custard pie that I've seen before include "Slapstick missile" , "It's thrown for laughs" , "Item thrown in slapstick comedy" , "Element of slapstick" , "Clown's dessert?" .)

I've seen this clue in The Globe and Mail.
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