Personal Improvement
by Kegler

By 28 Across, eight entries are doing what they can to better themselves.

Personal Improvement grid

Across
1Black glass provided by Western foreign aid is bombproof
8Clio's upset, with good reason
12Solo involves abbreviated measure for composer
13One silly person in Belgian city
15Light brown ant squashed
16Dodge model recalled in Missouri
17Data repository making D.A. bounce off the wall
18Backorder stock, mostly camping gear
19Fraternal order includes manor owner, perhaps
20A couple of assistants holding back crazy former president
22In ads, having fewer calories fired up appetite, at last
24Offering from within a sanctioned long-distance travel agency?
25Rejected some computers in swindle
27Have a kid's desire to comprehend answer
28See instructions
31Drink up at a particular joint, we hear?
33Maps out concert requirements
35I live by feral goat
37Five vehicles without first-class tape decks
39Inventor's stale crackers
41Tennessee crosses each mountain
42Adult left individual without help
44Discussed cold food
45Cheer up young man clutching horseshoe
46One foot towards the rear
47Excellent assist on energy (hyph)
48Desirable quality of hound, first off
49Speaks about Liberal and wows an audience
50Those who despise Hearst's maneuvering
Down
2Have sex with society girl from the South
3Align basin, reportedly
4Oil city laid out in a nonsensical fashion
5I live with certain writer having a poetic quality
6Turner returns, capturing new record
7Misrepresented two unceasingly ridiculous diets
8Debauchee's lewd look taking in church
9Dental assistant put out easily? Right on! (2 wds)
10White gold covered with green
11Fire consumes empty French city
14One demonstrating piece from putatively Martian vehicle
15Old flyer's no-good vibrating sound
21Like before, I start to adjust for bodily weakness
23Returning, Mrs. Eisenhower cut off religious leader
26A fish and seaweed-based gelatin
29Wild coon swallows one down? That's impossible (3 wds)
30Precise one-time performance
31Scene I choreographed for relatives...
32...while covering ski resort's advantages
34Verse written about, essentially, dahlia's plant tissue
36Certain radical Lucy's landlady described
38Two continents connected by union sweatshop?
40Misprinted flier's one with a run-on sentence?
43Facilitate unlimited leases

Solution