Intend to own hollow iron object (4,2,4)
I believe the answer is:
have in mind
'intend' is the definition.
(having in mind is a kind of intending)
'own hollow iron object' is the wordplay.
'own' becomes 'have' ('have' can be a synonym of 'own').
'hollow iron object' becomes 'inmind' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'have'+'inmind'='HAVE IN MIND'
'to' is the link.
Can you help me to learn more?
(Another definition for have in mind that I've seen is " Contemplate".)