Grab bag (4)
This clue is a double definition.
'grab' is the first definition.
(I've seen this before)
'bag' is the second definition.
(type of travelling bag)
(Other definitions for grip that I've seen before include "Purchase" , "one on film set" , "mastery of problem" , "Fascinate" , "Clasp" .)
'grab bag' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for olio that I've seen before include "Mixture" , "Variety" , "Savoury dish of different types of meat and vegetable" , "Collection of miscellany" .)