Cook some meat in iron container (6)
I believe the answer is:
flambe
'cook' is the definition.
(I know that flambe is a more specific form of the action cook)
'some meat in iron container' is the wordplay.
'some meat' becomes 'lamb' (lamb is a kind of meat).
'in' indicates putting letters inside.
'iron container' becomes 'fe' (I can't explain this - if you can you should give a lot more credence to this answer).
'lamb' put inside 'fe' is 'FLAMBE'.
Can you help me to learn more?
(Other definitions for flambe that I've seen before include "Of food, covered with alcohol and set alight" , "cooked in blazing brandy" , "cooked in spectacular way" , "Pour alcohol over a dish and ignite" , "Served in flames" .)