Spirit of destiny overlooking one part of family (5)

I believe the answer is:

genus

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'part of family' is the definition.
(biological taxonomy)

I can't explain the rest of the clue.

(Other definitions for genus that I've seen before include "Latin class?" , "Taxonomic group (biol.)" , "Kind or sort of" , "Class of animal" , "Biological group containing one or more species" .)

I've seen this clue in The Independent.

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