Move a little ceramic jar (7)
I believe the answer is:
migrate
'move' is the definition.
(I know that migrate is a more specific form of the action move)
'a little ceramic jar' is the wordplay.
'a little ceramic' becomes 'mi' (I can't justify this - if you can you should believe this answer much more).
'jar' becomes 'grate' (make unpleasant sound).
'mi'+'grate'='MIGRATE'
Can you help me to learn more?
(Other definitions for migrate that I've seen before include "move base?" , "Move with the seasons" , "Move from one country to another to settle" , "Change habitat (seasonally, perhaps)" , "Ragtime (anag)" .)