They have nails coming to points (4)
I believe the answer is:
toes
'they have nails coming' is the definition.
The definition suggests an adverb but the answer is not.
'to points' is the wordplay.
'points' becomes 'es' (E is an example).
'to'+'es'='TOES'
Can you help me to learn more?
(Other definitions for toes that I've seen before include "Divisions of foot front" , "Lower digits" , "What Pobble lacked (Lear)" , "Foot digits" .)