Baggage in hold (4)
I believe the answer is:
grip
I believe this is a double definition.
'baggage' is the first definition.
(grip is a kind of baggage)
'hold' is the second definition.
(gripping is a kind of holding)
'in' acts as a link.
(Other definitions for grip that I've seen before include "one on film set" , "member of camera crew" , "item of baggage" , "Deeply affect" , "Domination" .)