Irritably impatient (5)
I believe the answer is:
testy
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">irritably impatient</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for testy that I've seen before include "Irritably impatient" , "Short-tempered" , "Easily annoyed" , "Easily irritated" , "Showing irritation" .)