Possible Clues:

• Sharp, as in "bitter", perhaps
• Pleasingly pungent
• Flavoursome
• Appetising, as in drink
• Appetising
• Stimulating worker to hold up trimmed fabric
• Appetising, tangy
• Having a pleasantly sharp taste
• Stimulating drink often ordered in pub, as consumed
• Endless scoring of points by soldier, say, that's sharp?