Satisfied about a key component of discussion (4)
I believe the answer is:
meat
'key component of discussion' is the definition.
The answer and definition can be both related to thinking as well as being singular nouns.
Perhaps they are linked in a way I don't understand?
'satisfied about a' is the wordplay.
'satisfied' becomes 'met' (as in 'met the conditions of his contract').
'about' is an insertion indicator.
'met' going around 'a' is 'MEAT'.
Can you help me to learn more?
(Other definitions for meat that I've seen before include "Beef, chicken, pork etc" , "Food for carnivores" , "Chops, steaks etc" , "17 [ESSENCE]" , "Spam, ham, lamb etc" .)