Bring over shrimp or tuna sandwiches (6)
I believe the answer is:
'bring over' is the definition.
(I've seen this in another clue)
'shrimp or tuna sandwiches' is the wordplay.
'sandwiches' indicates a hidden word (the solution is sandwiched in by the clue).
'IMPORT' is hidden in the letters of 'shrimp or tuna'.
(Other definitions for import that I've seen before include "Weight" , "Meaning - bring goods into the country" , "Bring in goods from abroad" , "Convey" , "Item from abroad" .)