The following clues have something in common that is hinted at by the last clue.

1. RAN A CLOSE SECOND 

2. BANANA CLIP

3. DNA CLONING

4. ON A CLEAR DAY

5. Quantity applied to dubious advice

Answer to Clue 5:

 

A grain of salt

 

Answers to Clues 1-4:

 

Each clue word contains the consecutive letter NACL - NaCl - the chemical formula for salt:

 

1. raN A CLose second

2. baNAna CLip

3. dNA CLoning

4. oN A CLear day 

 

Credit:

LA Times Crosword

August 8, 2022

Catherine Cetta