"Reality Bites" director Stiller (3)

I believe the answer is:

ben

(Other definitions for ben that I've seen before include "Mountain peak (Scot.)" , "Boy for a Scottish mountain" , "Mountain; man's name" , "Big . . . is a famous London clock-tower" , "A Gaelic mountain like Bulben" .)

I've seen this clue in The Washington Post.

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