Possible Clues:

• Close aim (anag.)
• Slip one fish to the bottom of river
• Rolled up inside: one sun top
• One outer garment pulled up over single undergarment
• Woman's garment, one only visible after coat is taken up
• Cold — am I only in underwear?
• Woman's undergarment
• Shift in river where I catch fish
• One coat, reversible; only woman could wear it
• Top river, topping one with fish