In retirement try to accept modification of iron’s compounds (9)

'compounds' is the definition.
The definition and answer can be both substances as well as being plural nouns.
Perhaps there's a link between them I don't understand?

'in retirement try to accept modification of iron's' is the wordplay.
'in retirement' says the letters should be written in reverse (retire can mean to go back or backwards).
'try' becomes 'seek' (synonyms).
'to accept' means one lot of letters goes inside another.
'modification of' indicates anagramming the letters (I've seen 'modification' mean this).
'seek' back-to-front is 'kees'.
'irons' with letters rearranged gives 'rosin'.
'kees' enclosing 'rosin' is 'KEROSINES'.

Can you help me to learn more?