Tackle satirical sketch taking off Society (3)
I believe the answer is:
kit
'tackle' is the definition.
(both can mean gear or equipment)
'satirical sketch taking off society' is the wordplay.
'satirical sketch' becomes 'skit' (a skit is a short comedy sketch).
'taking off' is a deletion indicator.
'society' becomes 's' (common abbreviation in names of organisations).
'skit' with 's' taken out is 'KIT'.
(Other definitions for kit that I've seen before include "Set of equipment, perhaps for first-aid" , "Supplies" , "Old song 'Pack up your troubles in your old . . . bag'" , "Apparatus" , "Young stoat" .)