Related Clues:

• Difficult to grasp
• Hard to nail down
• Like Eastwood in three Leone films
• Difficult to understand
• Cloudy or indistinct
• Hazy and cloudlike
• Hard to pin down, slippery
• Evasive or intangible
• Salesmen lacking identity
• Slippery, hard to catch
• Slippery, hard to pin down
• Vile sue is hard to catch
• Difficult to catch, hard to pin down
• Hard to pin down or remember
• Cloudy and indistinct