On the themed grids I pore over, the crossword clue 'Hindu teacher' almost always signals a loanword from Indian languages — most commonly 'guru' or sometimes 'swami' or 'pandit'. I like that crosswords favor compact, recognizable terms, so a four-letter 'guru' is a handy fill. Etymologically, 'guru' comes from Sanskrit roots meaning someone who dispels darkness with light, which is a rich cultural image, while 'swami' carries connotations of mastery or ownership and 'pandit' suggests a learned scholar. Editors pick the shortest, most familiar option that fits crossing letters, but that choice carries cultural freight.
From my point of view as a longtime solver who reads little bits of history and language on the side, this kind of clue reveals both curiosity and simplification in mainstream puzzling. Many solvers absorb the Englishized sense of 'guru' — an expert or mentor — because pop culture has used it for decades. Think of how 'tech guru' or 'marketing guru' slipped into everyday speech; that shift shows how a sacred or specialized role in one culture can turn into a casual metaphor in another. I appreciate that crosswords can introduce words from other traditions, yet I also notice how often nuance is lost: not every spiritual teacher in South Asia would be appropriately labeled 'Hindu teacher', since similar roles appear across religions and philosophies. Still, seeing 'guru' on a grid sparks my curiosity and sometimes sends me off to read a little Sanskrit root or a short biography of someone like a classical teacher — satisfying that dual itch for language and culture.