Related Clues:

• Strange -- credit is short in support of German war machine
• Playing card included in #realmoney
• Ambiguous or puzzling
• Like steel
• Injured climber, a top becoming tricky
• Puzzling — mysterious
• Magnetic around one - mysterious!
• Complex measure at sea, extremely tricky
• Like dried cement
• Difficult, complex
• Difficult new route for a top climber
• Like some facts and stuff
• Solid, firm, rigid
• Grueling
• Solid or difficult to do