Germaine Slater-Arnold's skills

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Across
  1. 3. Grasp key without opening, using fingers (7)
  2. 6. Revolution is a foolish, vain notion (10)
  3. 7. Faithfulness shown by a leading candidate in church office (8)
Down
  1. 1. Intelligence shown by Cilla’s guest on air (4)
  2. 2. Talk about upwardly mobile badger is an order (12)
  3. 4. Commanders almost all perished in brawl (10)
  4. 5. Intense oiliness providing a way to rise up the ranks (3)