elucidate

(verb) make clear and (more) comprehensible. Synonyms: clarify, clear up. Example: "Clarify the mystery surrounding her death."

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