Dreads coiled snakes (6)
I believe the answer is:
adders
'snakes' is the definition.
(adder is a kind of snake)
'dreads coiled' is the wordplay.
'dreads' can be anagrammed to 'ADDERS'.
But, I am not clear how this is indicated.
Can you help me to learn more?
(Other definitions for adders that I've seen before include "Dreads (anag) -- snakes" , "Totting 25 down?" , "Do they deal with tots" , "Snakes are totters" , "Venomous snakes" .)