English monument gets stuffed, with single layer inside (10)
I believe the answer is:
stonehenge
'english monument' is the definition.
'stonehenge' can be an answer for 'monument' (I have seen 'Megalithic monument ' mean 'stonehenge' so perhaps 'monument' could also mean 'stonehenge'). I'm not sure about the 'english' bit.
'gets stuffed with single layer inside' is the wordplay.
'stuffed' indicates an anagram.
'with' means one lot of letters goes inside another.
'single' becomes 'one' (a single thing - only one).
'layer' becomes 'hen' (hens lay eggs).
'inside' is an insertion indicator.
'gets' is an anagram of 'stge'.
'stge' placed around 'one' is 'stonege'.
'stonege' going around 'hen' is 'STONEHENGE'.
Can you help me to learn more?
(Other definitions for stonehenge that I've seen before include "heritage site" , "plain ring" , "Prehistoric ruin, Salisbury Plain" , "Salisbury Plain circle" , "Megalithic monument on Salisbury Plain" .)