The answers to the clues below will have something in common.

1. Infant wear
2. Tough preschool age
3. Misfortune
4. Crawl
5. Celebratory gestures
6. Destroys of disposes of irretrievably
7. In disagreement
8. Ice skating patterns
9. Nattily attired
10. Second to the left of a decimal point

Answers:

1. Onesies
2. Terrible twos
3. Bad luck comes in threes
4. On all fours
5. High fives 
6. Deep sixes 
7. At sixes and sevens
8. Figure eights
9. Dressed to the nines
10. Tens' place