Runway shows precede 'outing' (8)
I believe the answer is:
airstrip
'runway' is the definition.
(I've seen this before)
'shows precede outing' is the wordplay.
'shows' becomes 'airs'.
'precede' means one lot of letters go next to another.
'outing' becomes 'trip' (I've seen this before).
'airs'+'trip'='AIRSTRIP'
(Other definitions for airstrip that I've seen before include "for those taking flight?" , "Place for taking off" , "essential to a Kennedy" , "Small runway" , "Land here" .)