At home cat almost gets tongue (4)
I believe the answer is:
inca
'tongue' is the definition.
(language of the Incas)
'at home cat almost' is the wordplay.
'at home' becomes 'in' (similar in meaning).
'almost' means to remove the last letter (most of the word but not all of it).
'cat' with its last letter taken off is 'ca'.
'in'+'ca'='INCA'
'gets' is the link.
(Other definitions for inca that I've seen before include "Tongue" , "Andean culture" , "Pyramid builders" , "Ancient inhabitant of Peru" , "Aged Peruvian" .)