Seven-letter words - change zero to two letters to make a new word (Part 1)

retinue

trended

upended

puddled

leadded

saddled

I don’t believe this is an actual word.

riddled

Leadded. I know it as a printing/typography term, related to the spacing between lines of type.

In play: fiddled

fielded

These look like definitions for lead or leading, unless I’m missing something.

There is this: Leadded.com

wielded.

whirled

whistle

thistle

listens

tensile

elastic

plastic

staples