Six-letter words - change zero to two letters make a new word

clumpy

plucky

buckle

suckle

Cletus

tickle

client

entice

notice

option

opiate

pirate

tilapia

“tilapia” has 7 letters. Working from “pirate”:

primal

:man_facepalming:Did it again!

Slimer

tinsel

piston

Dupont

points

stinky