demystify - make less mysterious or remove the mystery from; "let's demystify the event by explaining what it is all about"

crystalise, crystalize, crystallise, shed light on, sort out, crystallize, elucidate, illuminate, enlighten, straighten out, clear up, clear - make free from confusion or ambiguity; make clear; "Could you clarify these remarks?"; "Clear up the question of who is at fault"

explain, explicate - make palin and comprehensible; "He explained the laws of physics to his students"

elaborate, expatiate, expound, lucubrate, dilate, flesh out, exposit, enlarge, expand - add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing; "She elaborated on the main ideas in her dissertation"

disambiguate - state unambiguously or remove ambiguities from; "Can you disambiguate this statement?"

clarify, clear up, elucidate - make clear and (more) comprehensible; "clarify the mystery surrounding her death"