Iodine found in chopped up elm, chestnut and linden

'linden' is the definition.
('lime tree' can be a synonym of 'linden')

'iodine found in chopped up elm chestnut' is the wordplay.
'iodine' becomes 'i' (I is the chemical symbol for iodine).
'found in' means one lot of letters goes inside another.
'chopped up' is an anagram indicator.
'chestnut' becomes 'tree' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'elm' with letters rearranged gives 'lme'.
'i' going into 'lme' is 'lime'.
'lime'+'tree'='LIME-TREE'

'and' is the link.

Can you help me to learn more?