Chaos as Edward tucks into stewed lamb (6)
I believe the answer is:
bedlam
'chaos' is the definition.
(I know this)
'edward tucks into stewed lamb' is the wordplay.
'edward' becomes 'Ed' (short for Edward).
'tucks into' is an insertion indicator.
'stewed' indicates an anagram.
'lamb' anagrammed gives 'blam'.
'ed' inserted into 'blam' is 'BEDLAM'.
'as' is the link.
(Other definitions for bedlam that I've seen before include "Blamed for chaotic situation" , "State of extreme confusion and disorder" , "chaotic state" , "hubbub" , "Chaos - former asylum" .)