1997 MIT Mystery Hunt Puzzle 6 Solution

This puzzle is indeed "simpler than everyone thought" as suggested by the flavor text. Each clue includes the answer or a significant part of the answer. For example, the answer to 1-Across "Mosaic tile" is TILE.

TILE WAFTS ACCEDE
EMIR AGLOW FRAYED
APTS TIARA FOMENT
PATENTLYOBVIOUS
OIL USES  ARKS
TREAD   SKIM  AWL
   REFASTEN ASTRO
ACRE ETHAN DIALED
THENOSEONYOURFACE
BASALT GLADE ASKS
ARISE MUENSTER
TON  TINY   VIPER
   SEEN  SAFE RUE
  STRAIGHTFORWARD
TRAINS RAYON AGED
COLLIE ALLOT LUKE
HOSTED BEETS LEAN

The letters in the numbered spaces spell SEVENTY-EIGHT ACROSS, and the answer there is the answer to this puzzle, HOSTED.