Possible Clues:

• I see teacher returning greeting by male teacher of distinction
• Female spy's forgetting thanks, greeting guru
• Great Hindu sage
• Title that translates to 'great sage'
• A Hindu faith teacher or mystic
• Teacher back in classroom? I see teacher returning greeting
• Sage in meat rejected by a European sending starter back
• Spiritual leader and scholar with his hair styled
• A poor actor backing Sunak as guru?
• Thankless spy and head of security greeting teacher