Add all of the ingredients from the tomatoes through to the whole clove to a medium saucepan. (Save the Worcestershire sauce for the end.)
Bring to a simmer over medium heat and let it simmer, stirring occasionally, for approx. 25-30 minutes until the mixture has thickened up a bit. With a slotted spoon, remove the clove and discard.
With an immersion blender, blend until smooth. If using a blender, carefully transfer half of the mixture to the blender container (be careful blending hot liquids) and blend in batches until smooth.
Drain the mixture through a sieve into a heat-safe container. For an even smoother consistency, run through the sieve a second time (recommended).
Stir in the Worcestershire sauce, and chill before serving.