a dlb sorption

I am nascent at core, yet about 100;
You cannot outrun me, yet I can be caught;
I am the difference between a symbol of commerce and the creation of beauty; I am constant, yet mark the start of change (1)

C defined eight ways:
the core of “nascent” or the nascent part of “core”, circa, Roman numeral, speed of light, caught in cricket,
the difference between “cart” and “art”,
constant in mathematics and the start of “change”

Among the small and quaint, concealed among the large and majestic (7)

Definition = “among”
TWEE inside BEN = Scottish mountain

Define extremes of Denmark’s principal creative writers, Showing their heart with following in Germany (7)

Definition = “define extremes”
Principal letter of Denmark + ELI = the heart of “novelists” + MIT = WITH in German

This might be a clue, and which in Rome could mean anything (9)

Reverse clue: “equi-vocal” might be a clue for a word that sounds like “equi”, perhaps “e cui” = AND WHICH in Italian
Definition = “could mean anything”

Sharpened where games are played in London, Lacking nothing in translation,
To land with reason in Vienna or Copenhagen (5)

Double definition of GROUND in English, GROUND – O = GRUND and
double definition ofGRUND in German and Danish

Bands ply their veins in beds perhaps,
A cycling killer of animals producing eggs, An animal’s opposite on Earth (6)

Definition hinted at in four examples = “bands”, “ply”, “veins” and “beds” SLAYER with S cycled to the back,
animals that produce eggs are “layers” and
indirect definition: “animal” reversed + Earth = LAMINAE

Allow love in the business of engaging with others;

Reflecting so, united inside, Allowing all passage (6)

O = “love” in sport, inside PR = public relations + So reversed containing United
Definition = “allowing all passage”

Leading character in political corruption voted into office (except for the Spanish) given vaccine or subject to shielding? (9)

P = first character in “political” + ROT + ELECTED – EL = “the” in Spanish Definition = “given vaccine or subject to shielding?”

Some irritant material lies behind the elements of pearl, Transformed by this process, one becoming the other (11)

CEMENT placed behind an anagram of PEARL Definition = “by this process, one becoming the other”

Make more perfect this treacherous art: Pieces of a rarest form dropping from it (7)

Definition = “make more perfect”
Anagram of TREACHEROUS ART with letters of A RAREST removed

To go back to see inside each exhibit is, I very much believe, the solution (7)

Definition = “to go back to see”
Reversal hidden in plain sight inside “each exhibit is I very much believe”

Text by Ashley Knowles