Possible Clues:

• Strict, hard
• See about the strict cleric up there
• 'Strictly speaking, cute, perhaps (6)'
• 'It's always on the inside, strictly speaking (6)'
• Arduous
• 'Cute, perhaps, strictly speaking (6)'
• Demanding
• 'See about the priest up here, strictly speaking (6)'
• Always strictly on the inside
• Cut the East off at last - it's always inside