Piano or piece of furniture that's easily moved (8)
I believe the answer is:
portable
'easily moved' is the definition.
(I've seen this in another clue)
'piano or piece of furniture' is the wordplay.
'piano' becomes 'p' (musical abbreviation).
'piece of furniture' becomes 'table' (table is a kind of piece of furniture).
'p'+'or'+'table'='PORTABLE'
'that's' acts as a link.
(Other definitions for portable that I've seen before include "desirable type of pension" , "Handy - lightweight" , "Laptop, for example" , "Designed to be easily carried" , "Light enough to carry" .)