| NATIVESPEAKER | One using a language as his/her mother tongue (6,7) |
| DEAD | Such a language as ghosts speak? (4) |
| FIRSTLANGUAGE | Mother tongue |
| LINGUAFRANCAE | Way of communication between people who speak different mother tongues (6,7) |
| USETHEPICTURE | Advice for one using a photo-fit procedure to identify a suspect (3,3,7) |
| CREOLE | Language that began as a pidgin and was then adopted as a mother tongue (6) |
| GAMP | Martin Chuzzlewit nurse so famously associated with her unwieldy cumbersome umbrella that her name entered the English language as a slang term for a bulky brolly (4) |
| DERIVE | To have a word of another language as a source (6) |
| DEEDPOLL | Legal document made and executed by only one party, especially when a person changes his/her name (4,4) |
| HEADTEACHER | A hated No. 2 in school here replaced his/her boss? (4,7) |
| TEUTONIC | Mother tongue of many? One cut it out! (8) |
| ENGLISH | Help Glen with his mother tongue (7) |
| NATIVELANGUAGE | Another term for a mother tongue (6,8) |
| NATIVESPEAKERS | Those using their mother tongue (6,8) |
| LINGUA | _ franca, a language used for communication among people of different mother tongues (6) |
| LINGUAFRANCA | A language used for communication among people of different mother tongues (6,6) |
| FINISH | Put an end to language, as one might say (6) |
| MANDARIN | Damn awful rain - bad language as a result |
| SLEAZE | Cheaply crude language as last one lazes around |
| POTTYMOUTHED | Spewing naughty language, as a child |