Stop eating jerk briefly with American that's fussy (10)

I believe the answer is:

fastidious

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'fussy' is the definition.
(similar in meaning)

'stop eating jerk briefly with american' is the wordplay.
'stop eating' becomes 'fast' (I've seen this before).
'jerk' becomes 'idiot' (I've seen this in another clue).
'briefly' means to remove the last letter.
'with american' becomes 'us' (abbreviation for United States. I am not sure about the 'with' bit.).
'idiot' with its final letter removed is 'idio'.
'fast'+'idio'+'us'='FASTIDIOUS'

'that's' is the link.

Can you help me to learn more?

(Other definitions for fastidious that I've seen before include "Attentive to detail" , "Meticulous" .)

I've seen this clue in The Daily Mail.

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