Cross out six letters so that the remaining letters, without altering their sequence will spell a familiar English word:
B S A I N X L E A T N T E A R S
(In reply to re: Solution (spoiler)
In the immortal words of Groucho Marx:
"Time flies like an arrow. Fruit flies like a BANANA"
Now that Larry has explained the real trick, you can count me in with the fruit flies. BETTER was really the inferior solution.