Crisp green salad with avocado

Name: Crisp green salad with avocado
Ingredients: 200 g (7oz) packet of smoked streaky bacon rashers, stretched and cut in half; 100 mL (31⁄2fl oz) extra-virgin olive oil; 50 mL (2fl oz) cider vinegar; 1 level tbsp Dijon mustard; 1 tbsp. runny honey; 1 small radicchio lettuce, washed and leaves roughly torn; 2 celery sticks, trimmed, washed and roughly sliced; 2 red apples, quartered, cored and sliced; 2 ripe avocados, quartered, stoned, peeled and sliced; 1 bunch of watercress to garnish