The Health and Safety Executive has created an overview of the things you should do to help make your work and workplace COVID-secure. Essentially, a list of all the relevant guidance. This is for employers, but workers and the self-employed and FAME recommends all members look at it to ensure you are undertaking best practices:

https://www.hse.gov.uk/coronavirus/working-safely/index.htm?utm_source=govdelivery&utm_medium=email&utm_campaign=coronavirus&utm_term=covid-updates-secure&utm_content=digest-25-feb-21