My coming round to make the tea is friendly (5)
I believe the answer is:
matey
'friendly' is the definition.
(similar in meaning)
'my coming round to make the tea' is the wordplay.
'coming round' is an insertion indicator.
'to make' indicates anagramming the letters.
'tea' with letters rearranged gives 'ate'.
'my' placed around 'ate' is 'MATEY'.
'is' acts as a link.
(Other definitions for matey that I've seen before include "Friendly, sociable" , "Pirate's chum (colloq.)" , "Pally" , "Chummy" , "uncomfortably friendly" .)