Takes off from runways (6)
I believe the answer is:
This clue is a double definition.
'takes off' is the first definition.
(strip can mean to remove or take off)
'runways' is the second definition.
(I've seen this in another clue)
'from' is the link.
(Other definitions for strips that I've seen before include "Long narrow pieces" , "layers" , "Peels off" , "Removes clothes" , "Gets undressed" .)