Starry-eyed
I believe the answer is:
idealistic
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">starry-eyed</span>' is the definition.<br/ ><span class="explanation-format__explanation">(thesaurus)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for idealistic that I've seen before include "Utopian" , "Seeking the best" , "Visionary" , "Striving for perfection" , "High-minded - italicised (anag)" .)