Leaves to get right into affectionate final farewells (6)
I believe the answer is:
fronds
'leaves' is the definition.
(frond is a kind of leaf)
'right into affectionate final farewells' is the wordplay.
'right' becomes 'r' (common abbreviation).
'into' means one lot of letters goes inside another.
'affectionate' becomes 'fond' (synonyms).
'final' suggests the final letters.
The last letter of 'farewells' is 's'.
'r' inserted into 'fond' is 'frond'.
'frond'+'s'='FRONDS'
'to get' is the link.
(Other definitions for fronds that I've seen before include "Leaves of a fern" , "Fern foliage" , "Leaf-like parts of ferns" .)