Hi everyone, not sure if this gives rise to more confusion or clarity, but here goes, came across this updated document last night whilst trawling through www,gov.uk this document was updated on 1st May 2020 and it clearly states that our profession amongst others are an exception to the lockdown.
Point 1. Businesses & venues that must remain closed to members of the public – go to Retail and look to the right under exceptions.

https://www.gov.uk/government/publications/further-businesses-and-premises-to-close/further-businesses-and-premises-to-close-guidance#businesses-and-venues-that-must-remain-closed-to-members-of-the-public