Shaking, seeing red over son’s insatiability (10)
I believe the answer is:
greediness
'insatiability' is the definition.
'shaking seeing red over son's' is the wordplay.
'shaking' is an anagram indicator.
'over' means one lot of letters goes inside another.
'seeing'+'red'='seeingred'
'seeingred' is an anagram of 'greedines'.
'greedines' enclosing 's' is 'GREEDINESS'.
(Other definitions for greediness that I've seen before include "Gluttony" , "Avarice" .)