Speech defect (7)

<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">speech defect</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this in another clue)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for stammer that I've seen before include "Speak with difficulty" , "Talk incoherently" , "Involuntary speech mannerism" , "Psychological speech problem" , "delivery problem" .)
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">speech defect</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is all the clue.<br/ ></span>
(Other definitions for lisp that I've seen before include "Be unable to pronounce S" , "Non-standard pronunciation" , "Speak with defective sibilants" , "Thpeak like thith" , "Slip into speech defect" .)