Heaving bag into the sea after approval from Hans? (3-6)
I believe the answer is:
jam-packed
'heaving' is the definition.
(I've seen this before)
'bag into the sea after approval from hans?' is the wordplay.
'bag' becomes 'pack'.
'into' indicates putting letters inside.
'the sea' becomes 'med' (short for Mediterranean).
'after' says to put letters next to each other.
'approval from hans?' becomes 'ja' ('yes' in German - Hans is a German name).
'pack' going inside 'med' is 'mpacked'.
'mpacked' put after 'ja' is 'JAM-PACKED'.
(Other definitions for jam-packed that I've seen before include "Extremely crowded" , "Stuffed" , "Chock-a-block" , "Heaving" , "Completely full" .)