Give Heather ring, making kind of speech (5)
I believe the answer is:
lingo
'kind of speech' is the definition.
'give heather ring' is the wordplay.
'give' says to put letters next to each other.
'heather' becomes 'ling' ('ling' can be a synonym of 'heather').
'ring' becomes 'o'.
'ling' put next to 'o' is 'LINGO'.
'making' acts as a link.
(Other definitions for lingo that I've seen before include "Jargon, language (colloq.)" , "French?" , "speech" , "Language, colloquially speaking." , "Unfamiliar language or jargon" .)