Ev'ryone's '-ster'ing. (Gott! Even der Maus...?)

Auster pens novels, pure post-modern stuff.
Bluster of Doodyville’s grumpy ‘n’ gruff.
Custer claims fame for just taking a stand
Dumpsters…? Where half of the planet’s foods land.

Easter: “He’s risen!” Let’s color some eggs.

Forster: his novels, as film scripts, have legs.
Gloucester: Lear’s sidekick is Edmund’s old dad.
Hester (Ms. Prynne)…? One more good gal gone bad.

Ister (that’s Aethicus Ister to you)

sashays through the Cosmographia. (Who knew…?)
Hieronymus author’d this erudite coup.
The Court Jester jaws about “brew that is true.”

Kapellmeisters’ keisters grow fat (all that sittin’).

Lester of Leicester with lobster is smitten.
Munster’s a monster, though Fred Gwynne is not.
Nor’easters…? They blow up the East Coast…a lot.

‘Oldster’ is shorthand for – si! -- senior cit.

Pollster: she’ll pick your brain – if but a bit.
Quaester (sic): Roman appointee (misspell’d).
Rochester…? Man Friday. (Benny’s excell’d.)

Sylvester Stallone plays a sinister sheister.

Twister: a cyclone. (Twinn’d twisters…? A “twice”ster.)
Ulster: the scene of some Irish dissension.
Vester…? “Of you” (Latin, second declension).

Worcester: the home of Quinsigamond School.

Xyster: guitarfish. Or surgical tool.
Youngster: some kid who’s inventive though tiny.
Zoroaster…? Composer of Gathas, in fine.