Very Funny 
Ones with I-strain? EGOISTS [oldie but goodie]
Word preceding {a photo} CHEESE
Theme: comedians with initials D.C.
“Superman†publisher, and this puzzle’s title DCCOMICS [aside from finding four comics with DC initials, Meredith provided this clever summary]
RATING:
Three grins = Excellent: Loved it; Two grins = Good: Enjoyed it; One grin = Satisfactory: A bit bland for my taste; One teardrop = Unsatisfying: No fun
