Get over question from Seal (6)
I believe the answer is:
gasket
'seal' is the definition.
(gasket is a kind of seal)
'get over question' is the wordplay.
'over' indicates putting letters inside.
'question' becomes 'ask'.
'get' placed around 'ask' is 'GASKET'.
'from' is the link.
(Other definitions for gasket that I've seen before include "Flat metal seal between tow surfaces as of engine" , "Ring for sealing a pipe joint" , "Stage K (anag.)" , "packing material" , "Compressible piece of rubber forming a seal" .)