Unscramble Iterset

What is the meaning of word iterset unscrambled?

What 7 letter words can be made from letters I T E R S E T:

1. testier - Definition of testier

Make more words by adding or removing letters

How many 6 letter words can you make from letters I T E R S E T?

1. resite - Definition of resite

2. retest - Definition of retest

3. reties - Definition of reties

4. setter - Definition of setter

5. Sitter - Definition of Sitter

6. street - Definition of street

7. tester - Definition of tester

8. tetris - Definition of tetris

9. titers - Definition of titers

10. titres - Definition of titres

11. triste - Definition of triste

Which 6 letter words can be made by removing one letter and unscrambling the remaining letters?
1) Removing the letter I and unscrambling terset
2) Removing the letter T and unscrambling ierset
3) Removing the letter E and unscrambling itrset
4) Removing the letter R and unscrambling iteset
5) Removing the letter S and unscrambling iteret
6) Removing the letter E and unscrambling iterst
7) Removing the letter T and unscrambling iterse

More anagrams containing the letters I T E R S E T
iterste itertes rtestie teerist