Tried if car smash results in manslaughter (10)

I believe the answer is:

fratricide

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'manslaughter' is the definition.
The definition and answer can be both acts as well as being singular nouns.
Perhaps there's a link between them I don't understand?

'tried if car smash' is the wordplay.
'smash' is an anagram indicator.
'tried'+'if'+'car'='triedifcar'
'triedifcar' anagrammed gives 'FRATRICIDE'.

'results in' is the link.

Can you help me to learn more?

(Other definitions for fratricide that I've seen before include "The killing of one's brother" , "Cain's crime" , "Murder of a brother" .)

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

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