Shaking rug after Charlie's moving seat (7,5)
I believe the answer is:
rocking chair
'seat' is the definition.
(rocking chair is a kind of seat)
'shaking rug after charlie's moving' is the wordplay.
I cannot really see how this works, but
'shaking' could be 'rocking' ('rock' can be a synonym of 'shake') and 'rocking' is present in the answer.
'charlie' could be 'c' (phonetic alphabet: alpha, bravo, charlie etc.) and 'c' is located in the answer.
The remaining letters 'hair' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for rocking chair that I've seen before include "To-and-fro seat" , "Seat mounted on curved supports" , "traditionally peaceful seat" .)