In the morning, Rita drinks in pub, getting jug (7)
I believe the answer is:
amphora
'jug' is the definition.
(type of container)
'in the morning rita drinks in pub' is the wordplay.
'in the morning' becomes 'am' (AM on a clock).
'rita' becomes 'Ora' (singer Rita Ora).
'drinks in' indicates putting letters inside (inserted letters are drank in).
'pub' becomes 'ph' (public house).
'am'+'ora'='amora'
'amora' going around 'ph' is 'AMPHORA'.
'getting' is the link.
(Other definitions for amphora that I've seen before include "ancient vessel" , "Ancient Greek two-handled jar" , "piece of classical pottery" , "Ancient Greek storage jar" , "Classical jar for storing liquids" .)