puzzle

 ACROSS

  1 Lifesaver

  8 Pharmacologists study them

 13 Device for someone who has asthma

 14 For the most part

 15 Something that goes on top of something else

 16 Part of LGBTQIA+

 17 Not wireless

 18 Heavily criticize

 19 U.S. public health agency

 20 Enjoy the Swope Trails, say

 21 "Oh, be quiet"

 23 Delights

 24 Cake coating

 26 Graffiti, e.g.

 27 Baby food holders

 28 Confident solver's choice

 29 Not get to the point?

 32 Many can be seen in Kansas City

 33 "Was" is in it

 34 Closest bud

 37 Disappointments

 38 Company abbr.

 39 Princess Adora's superhero form

 41 Problem with a plot

 42 Book list?

 44 Some Ashanti Anderson poems

 45 Third-person contraction

 46 Captains' records

 47 Fully ready

 49 "Ugh, I wish I were you!"

 51 Form rust, perhaps

 52 Modifies

 53 Dwells

 54 Run in the laundry

 55 What you may pass if you solve this clue instantly?

DOWN

  1 Tiny implanted device

  2 Freelancer's document

  3 Small pickle

  4 Solidify

  5 "Legally Blonde" protagonist

  6 Directs followers

  7 Ask too many questions

  8 Short run

  9 Umbrella part

 10 Fantasy creature such as Marigold Heavenly Nostrils

 11 Knight with pipes and Pips

 12 Coordinates, as gadgets

 14 Go well together

 16 1978 Donna Summer hit that won an Oscar and a Grammy

 18 Many are eaten in Kansas City

 22 Eerie visits

 23 Large shark parts

 25 "Get that away from me!"

 27 Title surname for Carmen and Cleopatra

 30 Not just running low

 31 Prefix for "cover" or "charge"

 32 Tapering haircut

 33 Throb

 34 ___ manner

 35 Doesn't just chill

 36 Most likely to win a crossword tournament, perhaps

 37 "I want to hear this!"

 40 "Stop right there!"

 41 Muslim head covering

 42 Promises of repayment

 43 Horizontal lines on graphs

 46 "Take My Hand, Precious ___"

 48 Speech therapy focus, maybe

 50 Popular Korean surname

 51 Rock that may contain silver

solution