Last letter = First Letter, min 3 syllable word chain

Romanov

voltaic

catalytic

circumstance

ecumenical

lolicon

Northwestern

nocturnal

lachrymose

eucalyptus

ahem, Spiderman (is my submission unless you don’t allow proper nouns)

ne’er-do-well

Lithuanian

numerologist

tarantula

adventurous

(Yes, we allow proper nouns, Spiderman).

submarine

Erato

occupation

newspaper