What do the following phrases have in common? 

1. LABOR LEADER

2. CIVIC CENTER

3. HEAD START

4. BITTER END 

 

HINT:
Take each clue literally.

 

Answers:

 

Taken literally, each clue can be answered by a single letter:

 

1. LABOR LEADER - L (the leading letter of LABOR)

2. CIVIC CENTER - V

3. HEAD START - H 

4. BITTER END - R