Receive outside request for great seal? (6)
I believe the answer is:
gasket
'great seal?' is the definition.
'gasket' can be an answer for 'seal?' (gasket is a kind of seal). I'm unsure of the 'great' bit.
'receive outside request' is the wordplay.
'receive' becomes 'get' (synonyms).
'outside' is an insertion indicator.
'request' becomes 'ask' (to ask is to request something).
'get' going around 'ask' is 'GASKET'.
'for' is the link.
Can you help me to learn more?
(Other definitions for gasket that I've seen before include "Seal for a pipe joint" , "Seal at a pipe point" , "It provides a seal" , "It helps seal" , "Seal between metal faces" .)