Some wine spilled over curvy figure (7)
I believe the answer is:
ellipse
'curvy figure' is the definition.
'ellipse' can be an answer for 'figure' (ellipse is a kind of figure). I'm unsure of the 'curvy' bit.
'some wine spilled over' is the wordplay.
'some' indicates the answer is hidden within the clue (some parts of the word are used).
'over' says the letters should be written in reverse.
'espille' is hidden within 'wine spilled'.
'espille' back-to-front is 'ELLIPSE'.
Can you help me to learn more?
(Other definitions for ellipse that I've seen before include "Shape - sell pie (anag)" , "Egg-shaped geometrical figure" , "Sell pie off for a geometric figure" , "Geometrical oval" , "Regular oval shape" .)