Crossword puzzle clue "subject agreement"

Start of an agreement that's not really an agreement

Subject-verb agreement ___

Subject-___ agreement

Like verbs that join the subject of a sentence to a subject complement

Subject of a painting about how the answer to this clue isn't the subject of the painting

Subject-to-subject link

Sermon subject + a letter + trial subject + cat sound = ?

Subjects of a '72 agreement between the U.S. and the U.S.S.R.