Russian-American Thinker, Wrote the Fountainhead
Puzzle 3 of Famous Philosophers Hard Pack
Question is: Russian-American Thinker, Wrote the Fountainhead
and the answer is: AYNRAND
Word Meaning:
AYN — (linguistics) Synonym of ayin, the various letters representing the consonant /ʕ/ in Semitic languages.
Definitions from Wiktionary.