Yes, tails is a Scrabble word!

Verb

1. Go after with the intent to catch

2. Remove or shorten the tail of an animal

3. Remove the stalk of fruits or berries

Noun

1. Formalwear consisting of full evening dress for men

2. The posterior part of the body of a vertebrate especially when elongated and extending beyond the trunk or main part of the body

3. The time of the last part of something

4. Any projection that resembles the tail of an animal

5. The fleshy part of the human body that you sit on

6. A spy employed to follow someone and report their movements

7. (usually plural) the reverse side of a coin that does not bear the representation of a person's head

8. The rear part of an aircraft

9. The rear part of a ship