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.
The letters "nlousacttgirnoa" can be unscrambled to form the word "congratulations."
Pepsin.
motorcade
quadrivium
Erosion.
MUSLIN
lathe
octet
Ridiculous.
Laxity
therapy
Achieved