Vacancy for launch (7)
I believe the answer is:
opening
I believe this is a double definition.
'vacancy' is the first definition.
(I've seen this before)
'launch' is the second definition.
(I've seen this before)
'for' is the link.
(Other definitions for opening that I've seen before include "Vent or opportunity" , "premiere" , "launch" , "Space, gap; beginning" , "Job opportunity" .)