Love new lid on drink container (3,4)
I believe the answer is:
oil drum
'container' is the definition.
(I've seen this before)
'love new lid on drink' is the wordplay.
'love' becomes 'o' (In tennis, 'love' means 'zero').
'new' indicates an anagram.
'on' is an insertion indicator (as in clothing \'on\' a person).
'drink' becomes 'rum' (rum is a kind of drink**).
'lid' with letters rearranged gives 'ild'.
'o' going inside 'ild' is 'oild'.
'oild'+'rum'='OIL-DRUM'
(Other definitions for oil drum that I've seen before include "Large container" , "Fuel container" , "Container for crude" , "Metal barrel for fuel" .)