The anagram is "septum" (a division, as between the nostrils).
lathe
Erosion.
the word is optimistic
The anagram is mayhem.
The letters 'tighrast' unscrambled spell the word straight.
Pepsin.
motorcade
quadrivium
therapy
MUSLIN
Erosion.
Laxity
Ridiculous.
lathe
octet
Achieved
the word is optimistic