Until that is put in order this is useless (7)
I believe the answer is:
inutile
'is useless' is the definition.
(similar in meaning)
'until that is put in order' is the wordplay.
I cannot really understand how this works, but
an anagram of 'until' is 'nutil' which is located in the answer.
'that is' could be 'ie' (short for Latin 'id est', 'that is') and 'ie' is found in the remaining letters.
This accounts for all the letters.
This explanation may well be incorrect...
'this' acts as a link.
Can you help me to learn more?
(Another definition for inutile that I've seen is " Not worth using, useless".)