Alpha Cipher

The letters A to Z have each been allocated a different number between 1 and 26. The number next to each word in this list is the sum total of the letter values in that word. So, for example, in OWL, O might equal 3, W 20 and L 13, or O might equal 15, W 14 and L 7, or any other combination adding up to 36. We’ve placed some starter letters in the grid at the bottom — can you work out the values of the rest?