to be perfectly clear / to be logical, consistent, penetrating

Same as above

explanation

to explain

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend

he; boyfriend

perfect, completed

completeness / perfection

instruction manual / explanation paper