A fish's egg found in the protective wear (8)
I believe the answer is:
leggings
'a fish's egg found in the protective wear' is the definition.
I can't judge whether this defines the answer.
'a fish's egg found in' is the wordplay.
'a fish's' becomes 'lings' (ling is a kind of fish).
'found in' indicates putting letters inside.
'lings' going around 'egg' is 'LEGGINGS'.
Can you help me to learn more?
(Other definitions for leggings that I've seen before include "Close-fitting trousers" , "Garments for lower limbs" , "Ski-pants without stirrups" .)