Happy 40th Donna, use the first letters of each word to find a clue, ready for when we get to our destination (its a shop name word jumble)

123456
Across
  1. 3. Strong effect
  2. 5. To join forces
  3. 6. Black
Down
  1. 1. Phonetic
  2. 2. Gory
  3. 4. Colossus