Talk about one extremely satisfying flipping puzzle!
I believe the answer is:
jig saw
'puzzle' is the definition.
(I've seen this before)
'talk about one extremely satisfying' is the wordplay.
'talk' becomes 'jaw' (jawing is a kind of talking).
'about' indicates putting letters inside.
'one' becomes 'i' (Roman numeral).
'extremely satisfying' becomes 'gs' (I can't justify this - if you can you should give a lot more credence to this answer).
'i'+'gs'='igs'
'jaw' going around 'igs' is 'JIG-SAW'.
'flipping' acts as a link.
I am not very happy about this link. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for jig saw that I've seen before include "Puzzle -- powered cutter" , "Piecing-together puzzle" , "Kind of puzzle" , "Cutting tool and picture puzzle" , "Sharp tool (for cutting puzzle into pieces?)" .)