Part of the family’s great talent avoiding one (5)
I believe the answer is:
genus
'part of the family's' is the definition.
(I've seen this before)
'great talent avoiding one' is the wordplay.
'talent' becomes 'art'.
'avoiding' suggests deleting specific letters.
'one' becomes 'nus' (I can't explain this - if you can you should give a lot more credence to this answer).
'great' with 'art' taken away is 'ge'.
'ge'+'nus'='GENUS'
Can you help me to learn more?
(Other definitions for genus that I've seen before include "Division of family" , "Latin class?" , "Category between family and species" , "Taxonomic category above species" , "Group of plants with common characteristics" .)