The answers to the clues below are related in a certain way. Can you determine what it is?

1. Average guy - poetically
2. They'll make you a Hangman winner
3. Dynamic Duo member
4. Performs a household chore
5. Pricey restaurants' claim

Answers:

1. Everyman 
2. Good guesses
3. Boy Wonder
4. Does laundry
5. Fine dining

Relationship:

The musical notes of the lines of the treble clef are E, G, B, D, G. The mnemonic device for remembering them is the first letter of the words in the sentence Every Good Boy Does Fine.

Credit:
Elizabeth C. Gorski 
MUSICAL MNEMONIC