There is no 7-letter anagram. The letters do spell several phrases including "new rate."
Shorter words form these letters include neater, wanter, newer, renew, and eaten.
anyone
nature
These letters could be rearranged to spell the word 'banker'.
England!
toner
energy
Those letters will spell dental.
You can spell node and done with those letters.
Words that can be spelled with the letters 'snlliten' are:Iellenlistillillsininsinletinletsinninnsinsetisisleisletititsleileislenslentlentillentilslestletletslielienliensliesliltliltslinelineslinenlinnetlintlislelistlistenlitnestnetnetsnilnineninesnitnitssellsentsetsilentsillsiltsinsinesitsiteslitsnitsteinstilestilltelltellstentenstennistietiestiltiletilestilltintinstinetinestinseltis
x men
degown
Conifer