Snappy reply (6)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">snappy reply</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 retort that I've seen before include "Quick rejoinder" , "Still" , "Part of chemist's equipment" , "Make quick or angry reply" , "Sharp response; lab item" .)
(Other definitions for express that I've seen before include "Utter; speedy" , "Utter - direct" , "Train; utter" , "Quick -- exact" , "Verbalise - very fast" .)