Line got cut in speech (5)
I believe the answer is:
lingo
'speech' is the definition.
(lingo is a kind of speech)
'line got cut' is the wordplay.
'line' becomes 'l'.
'got' says to put letters next to each other.
'cut' becomes 'ingo' (I am not sure about this - if you are sure you should believe this answer much more).
'l'+'ingo'='LINGO'
'in' acts as a link.
Can you help me to learn more?
(Other definitions for lingo that I've seen before include "Jargon, foreign language (informal)" , "Johnny Foreigner speaks one" , "Language (slang)" , "strange language" , "local dialect" .)