Incites havoc, a truly fragile thing (8)
I believe the answer is:
eggshell
'a truly fragile thing' is the definition.
Although both the answer and definition are singular nouns, I don't understand how one could define the other.
'incites havoc' is the wordplay.
'incites' becomes 'eggs' (I've seen this before).
'havoc' becomes 'he'll' (I've seen this in another clue).
'eggs'+'hell'='EGGSHELL'
Can you help me to learn more?
(Other definitions for eggshell that I've seen before include "delicate finish" , "formed in layers" , "Slightly glossy (of paint)" , "Kind of porcelain" , "Variety of paint" .)