Flemish earthenware drinks bottle (5)
I believe the answer is:
heart
'bottle' is the definition.
(I've seen this before)
'flemish earthenware drinks' is the wordplay.
'drinks' says the answer is hidden in the clue (words in the clue have absorbed the answer).
'HEART' can be found hidden inside 'flemish earthenware'.
(Other definitions for heart that I've seen before include "one needs to beat" , "Core - card" , "Muscular organ for blood circulation" , "Nucleus" , "bottle" .)