The anagram is mayhem.
lathe
Erosion.
the word is optimistic
The letters 'tighrast' unscrambled spell the word straight.
The letters 'ryadonml' unscrambled spell the word randomly.
Pepsin.
motorcade
quadrivium
MUSLIN
lathe
octet
Erosion.
Ridiculous.
Laxity
therapy
Achieved
Vesper