More vulgar chap appropriating grand language (3,6)
I believe the answer is:
low german
'language' is the definition.
(Low German is an example)
'more vulgar chap appropriating grand' is the wordplay.
I cannot quite understand how this works, but
'more' could be 'm' and 'm' is found in the answer.
'vulgar' could be 'low' and 'low' is present in the answer.
'grand' could be 'g' (G is short for grand as in a thousand) and 'g' is found within the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for low german that I've seen before include "language" , "European dialect" .)