Spin the first vase (4)
I believe the answer is:
turn
'spin' is the definition.
(I've seen this in another clue)
'the first vase' is the wordplay.
'the first' becomes 't' (1st letter of 'the').
'vase' becomes 'urn' (both can mean a container).
't'+'urn'='TURN'
(Other definitions for turn that I've seen before include "change for Autumn" , "Sour" , "Go - short walk" , "Change direction" , "Move in a new direction" .)