Two legs moving around quietly avoiding this? (8)
I believe the answer is:
eggshell
'avoiding this?' is the definition.
The definition suggests a singular noun which matches the answer.
'two legs moving around quietly' is the wordplay.
'two legs' means two substitutions for 'leg'.
'moving' indicates an anagram (letters are moved around).
'around' is an insertion indicator.
'quietly' becomes 'sh' (both are used to tell someone to be quiet).
'leg'+'leg'='legleg'
'legleg' anagrammed gives 'eggell'.
'eggell' enclosing 'sh' is 'EGGSHELL'.
Can you help me to learn more?
(Other definitions for eggshell that I've seen before include "made in Dorking?" , "Type of paint finish" , "manufactured in layers?" , "Variety of paint" , "Paint with just a slight gloss" .)