The first four clues below will have something in common that is hinted at by the fifth clue. Can you determine what it is?

1. Compressed-air drill

2. Lady in charge

3. Amos 'n' Andy character

4. Secret advantage

5. Likely or certain to happen 

Answer to Clue 5: 

It's in the cards

 

Answers to Clues 1-4:

1. Jackhammer

2. Queen bee

3. Kingfish

4. Ace in the hole