Possible Clues:

• Pant leg
• Pocket found in short pants
• Press used on only half a garment?
• Pocket for half of one's pants
• Our rest (anag)
• Pocket found in short jeans, perhaps
• Appropriate one wakes after end of night
• Some disastrous error is appropriate
• Take circuitous routes north of river
• Appropriate uniform adopted in elevated place for holidaymakers