Possible Clues:

• Jeans were part of the problem? On the contrary
• You'd swear the solution is to be found about the North
• Four points must be included in a right response
• A quartet of directions given before right solution
• You may find it as Wren built
• You're asking for it!
• 'Jeopardy!' clue
• But it might not do for the examiner!
• Some valetudinarians were fit
• How one might long for 17 down