make plain and comprehensible

that makes clear

free from obscurity and easy to understand; the comprehensibility of clear expression

an interpretation that removes obstacles to understanding

an act of explaining that serves to clear up and cast light on

make less mysterious or remove the mystery from

make free from confusion or ambiguity; make clear

add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing

state unambiguously or remove ambiguities from