Possible Clues:

• Coarse grass on sandy beaches
• The sort of grass that will spoil a sheep
• Sea grass
• Either way, that grass will not do the sheep any good
• Sheep facing each other in the grass
• Either way, that grass will spoil the sheep (6)
• Whichever way you look at it, that grass is no good for 18 down female
• The sheep will go backwards and forwards for grass
• Whichever way you look at it, that grass is no good for sheep
• Grass shows damage by sheep going to and fro