Something to Consider
by Kegler

Six answers are changed (to non-words) before entry, as indicated by 28 Across.

Something to Consider grid

Across
1Mr. Buttons returns with old one who gets things done
5Former commissioner initially suspended trading
12Poem shows no trace of Viking language
14Spanish ship is one that ruins things
15Admires elaborate weapon
16Ace in duel's flying based on a certain geometry
18Disrespect of one's elders is breaking up a precious thing
23Our group taking in poorly-aligned view from a special lens
24Native American edges away from display
25Mr. Rogers, acquiring Indian garment, having no interest in beads
27Sweetheart of you and me celebrates in England
28See instructions
31Coed upset by unknown duck-like creature?
35OPEC went crazy for British coin
37Vocally tear down poker player's action
38Save heart of this federal agency system (2 wds)
42Father swallows excellent vegetable
43Rampaging Tories raid
44Man and wife, one from Scottish islands
45Drunk interrupted a composer
46Vessel remained dormant, caging one large snake
47Units running east and south
48Tame anger about smashed bead
Down
1Half-dead, second couple give up hope
2Primate mostly red and yellow
3Hollow out eggs and squeeze orange drink
4Agents count at a health club?
5Finally conjure up one more sword
6Chairmaker and ally ultimately going after Greek character's trickery
7Animals inside trap escape
8Mrs. Charles's galloping roan
9Soldiers around Berlin essentially starting to check out young lady in uniform (2 wds)
10Social misfits on the rise, senator welcomes doctor
11Incredible Garden State is most impressive
13Squat with official in dirty spot
17Trivial truth
19Hearing worker get on a board?
20Greetings from Waimanalo, Hawaii!
21Janet Irish, artist
22Appreciated the main thing about regular pharmacy worker
26Skill of some teachers sent pedagogs retreating
28Loud tag player's tantrum
29Clinic and HMO heartlessly skewer Mr. Franken
30Fond of boy clutching small car model (2 wds)
31Talk show host put on one color
32Regarding Eric, involving one of dreams
33Feel wan? Sick? It's a good thing to turn over (2 wds)
34Decrease in hostility in camp described by Dee
36Male burro provided backbone for mountains
39Steel rod beginning to bend in back
40Completes send-off
41Emigré belatedly hides bird
42Couple from Estonia entering post office in Mexican capital

Solution