Possible Clues:

• Try out (for)
• Trial performance for an artiste
• Check one performing in selection procedure
• Test for a performer
• Test of performance
• Potential performer's try-out
• Tax cheat's worst nightmare - getting charged? It's an opportunity to test one's ability at playing the eejit perhaps!
• Try for role
• Tax cheat's worst nightmare to get charged - it's an opportunity to test one's ability at playing the fool
• Test car wheel cased in metal