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
Larry's proposed solution gave me the trick. (Thanks, Larry)
But BANANAS doesn't work because 7 letters are crossed out (including one of the two S's).
And BANANA doesn't work, also because 7 letters are crossed out.
So my solution is BETTER, formed by crossing out every instance of S, A, I, N, X and L.
Other solutions might be possible.