In some countries, "clerk" is pronounced that way.
clerk
You are referring to Clerk, so a better rhyme would be Perk, though some people do pronounce Clerk to rhyme with Park.
Something that rhymes with park that is 2 syllables is Clark. Aardvark rhymes and is two.
park
Anything that rhymes with bark; dark, park, quark, lark, mark.
lark
dark
Pater wark
stink in dark
park, ark
bentral bark
park