I have done something like this before this is a little different
I come up with a word the word being STOOD
You can change a letter and reorganise the letter to form another word
But you can only change one letter
For example
STOOD
change an o for a A
new word
TOADS
By changing the o for a n
You can get
STAND
Have fun see how many words we can come up with!
So word now is STAND