One's left poet to acquire round piece of furniture (9)
I believe the answer is:
sideboard
'piece of furniture' is the definition.
(sideboard is a kind of piece of furniture)
'one's left poet to acquire round' is the wordplay.
'one's left' becomes 'side' (left is a side).
'poet' becomes 'bard' (bard is a kind of poet).
'to acquire' means one lot of letters goes inside another.
'round' becomes 'o' (round can mean a round object).
'bard' enclosing 'o' is 'board'.
'side'+'board'='SIDEBOARD'
(Other definitions for sideboard that I've seen before include "dresser?" , "Dining room furniture" , "Dior beads (anag.)" , "place for silverware?" , "Piece of dining-room furniture" .)