Possible Clues:

• The German taking in stranger, one who's slightly feeble
• The German to entertain stranger who is old and infirm?
• Comedian with repeated hesitation, one stumbling around?
• Walker is not the steady type or active person restricting the German director from the start
• Unsteady old type provides party for theologian linked to the Wards?
• Trot back to collect stranger, one unsteady on his feet
• Golden ager with an unsteady walk
• Hawk turning, traps duck beside one antipodean tree