Answer:

explain

Answer	Crossword Clue
EXPLAIN	Clarify
EXPLAIN	Make clear
EXPLAIN	Elucidate

EXPLAIN	Clear up.
EXPLAIN	Account for.
EXPLAIN	The Who "I Can't ..."
EXPLAIN	Make comprehensible

Crossword

a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.