Challenge - Crossword Clue, Answer and Explanation

'challenge' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for test that I've seen before include "Critical examination or trial of qualities or abilities" , "Cricket match; try" , "catch trout in it?" , "Trial - big match" , "type of examination" .)

I've seen this clue in The Washington Post, The Mirror, the LA Times, the King Feature Syndicate, The Guardian, The Daily Mail, the Evening Standard, the Penny Press, the Sydney Morning Herald, The Star Tribune, The Independent, The Telegraph, the Universal and The Wall Street Journal.

(Other definitions for snag that I've seen before include "banger down under" , "Hitch, obstacle" , "Unforeseen obstacle" , "Temporary hold-up" , "A hidden obstruction" .)

I've seen this clue in The Washington Post, The Mirror, the LA Times, the King Feature Syndicate, The Guardian, The Daily Mail, the Evening Standard, the Penny Press, the Sydney Morning Herald, The Star Tribune, The Independent, The Telegraph, the Universal and The Wall Street Journal.

'challenge' is the definition.
(I know that defy is a more specific form of challenge)

This is the entire clue.

(Other definitions for defy that I've seen before include "Disobey boldly and openly" , "Go against (authority)" , "Withstand" , "Refuse to obey (person)" , "Boldly resist (authority, etc)" .)

I've seen this clue in The Washington Post, The Mirror, the LA Times, the King Feature Syndicate, The Guardian, The Daily Mail, the Evening Standard, the Penny Press, the Sydney Morning Herald, The Star Tribune, The Independent, The Telegraph, the Universal and The Wall Street Journal.

(Other definitions for stretch that I've seen before include "time spent in jail" , "What one does in prison" , "Pull to make longer or wider" , "Make longer/wider" , "Exaggerate" .)

I've seen this clue in the Penny Press, the USA Today, The Guardian and The Sunday Times.

Challenge (4)