“With 87-Down, idiom about wasting one's efforts … as seen in four columns in this puzzle?”

Post-vacation pile

Brooklyn Brewery's Special Effects, e.g., in brief

Historical Dutch settler

___ guisado (Caribbean stew)

Vapid

Campaign manager?

Puzzle type that was the Oxford Dictionaries' 2005 U.K. "word of the year"

Metallurgist's evaluation

Butterflies, so to speak