Yes, ale is a Scrabble word!
...and is worth 3 points in Scrabble, and 4 points in Words with Friends
ale
Noun
1. A general name for beer made with a top fermenting yeast; in some of the United States an ale is (by law) a brew of more than 4% alcohol by volume
What Scrabble words can I make with the letters in ale?
3 Letter Words
2 Letter Words