Chairs lacking covers, so get a takeaway (3,2)
I believe the answer is:
eat in
'get a takeaway' is the definition.
(eat in can mean to eat at home)
'chairs lacking covers' is the wordplay.
'chairs' becomes 'seating' (seating means things to sit on).
'lacking covers' says to take the centre (the letters which cover the word are removed).
The middle letters of 'seating' are 'EAT IN'.
'so' acts as a link.
(Other definitions for eat in that I've seen before include "Have fare home" , "Avoid restaurant" , "corrode" , "Stay at home for meal" , "Dine at home" .)