Read the Label
by Kegler

Ten of the Down answers each lose a letter to either the top or bottom unnumbered row.  In these cases, the remaining letters must be anagrammed to form a new word, which is entered in the grid.  The clues for these ten entries contain definitions for both words, but the wordplay describes only the longer of the two.  The removed letters will form two five-letter antonyms appropriate to the unclued four-word phrase in the shaded rows.

Read the Label grid

Across
1A massage on a Caribbean island
6French soldier's Hawaiian food starting to look unsatisfactory
10Florid Hopper imbibes trio of cocktails
11Bringing back fruit for runner Zapotek
13Streakers ran into and upset Rose?
15Feature broadcast anytime
16Sink box containing treasure, essentially
17Reportedly quiet section
19Learns about pair of serviceable boxcars?
20In sum, Reverend Spooner's big, gray (2 wds)
24Neighborhood is, for you, initially attractive
25Elisha's dancing with girl from Australia
26Press disturbed maid about lie, ultimately
27Suppress a yawn covering trial
Down
1Out-of-control car hit principal
2Swindler's castle
3Working around strange bits consumed stubborn scientist
4Expert actor Nicolas' onset of camera time
5Musical composition by Dame Myra enthralling the French, anyway
6Cement set end of last year
7Drug overdose is starting to move systemization forward
8Yemeni coins gentleman has put back for storytellers
9Greek hero with pointed tools and pen with fifty uses
12Determined malefactors reviled so badly
14Some Arab states send back wild raves for shortcut
15Lincoln, emotional ham, brashly describes Moorish palace
18About certain plants, perhaps, Rosemary and Al talk loudly
19Socks a Hebrew prophet
21Knocked back drinks with actress Ward
22Greeting Happy, dwarves' leader, inside
23Headgear shielding top of ears is warm article

Solution