Speech defect (7)
'speech defect' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for stammer that I've seen before include "Speak with difficulty" , "Talk incoherently" , "Involuntary speech mannerism" , "Psychological speech problem" , "delivery problem" .)
'speech defect' is the definition.
(I've seen this before)
This is all the clue.
(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" .)