After uni cut short, boy goes round old dump (6)
I believe the answer is:
unload
'dump' is the definition.
(I've seen this in another clue)
'after uni cut short boy goes round old' is the wordplay.
'after' means one lot of letters go next to another.
'cut short' means to remove the last letter.
'boy' becomes 'lad' (informal term for boy).
'goes round' indicates putting letters inside.
'old' becomes 'o' (common abbreviation eg in OE for Old English).
'uni' with its last letter removed is 'un'.
'lad' going around 'o' is 'load'.
'un' put next to 'load' is 'UNLOAD'.
(Other definitions for unload that I've seen before include "Remove cargo from ship or goods from lorry" , "Remove (a gun's ammo)" , "Get rid" , "Remove cargo from ship or charge from gun" , "Take goods from (ship)" .)