Burn meat in iron casing (6)
I believe the answer is:
flambe
'burn' is the definition.
Both the definition and answer are verbs in their base form.
Maybe you can see an association between them that I don't see?
'meat in iron casing' is the wordplay.
I cannot really see how this works, but
'meat' could be 'lamb' (lamb is a type of meat) and 'lamb' is present in the answer.
'iron' could be 'fe' (Fe is the chemical symbol for iron) and 'fe' is found within the remaining letters.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for flambe that I've seen before include "Of food covered with spirits and set alight" , "Pour liquor over a dish and ignite" , "Pour alcohol over a dish and ignite" , "(Of food) served with burning spirits" , "dish on fire" .)