Possible Clues:

• Rally with donkey symbol cut short
• Group practised holding jam turned up...
• Cobble together
• Put together, like furniture
• Meet doctor she blames leaving hospital
• Gather with capacity to contain returning chaos
• Gather, taking walk around South London area
• Labs seem unstable to construct
• Graduate stands outside canteen over by the French group
• Set up and clued up about mess up