Mug - very kind - drank shot (7)
I believe the answer is:
tankard
'mug' is the definition.
(I've seen this before)
'very kind drank shot' is the wordplay.
'very kind' becomes 'ta' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'shot' indicates an anagram.
'drank' anagrammed gives 'nkard'.
'ta'+'nkard'='TANKARD'
Can you help me to learn more?
(Other definitions for tankard that I've seen before include "Drank at (anag)" , "One-handled drinking mug" , "Beer-mug" , "Tall beer mug" , "Drinking vessel with a handle" .)