I put on a shift with impractical hopes (7)
I believe the answer is:
utopian
'with impractical hopes' is the definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'i put on a shift' is the wordplay.
'shift' indicates an anagram.
'i'+'put'+'on'+'a'='iputona'
'iputona' with letters rearranged gives 'UTOPIAN'.
Can you help me to learn more?
(Other definitions for utopian that I've seen before include "Of Thomas More's perfect place" , "Thomas More-ish?" , "Of an ideal existence" , "Fantastic" , "Just perfect, as in Thomas More's ideal country" .)