UK CAA Definition of Airwork ?

[saddest aviator]

Dear All,
do any of you bright sparks out there have a notion of where i can find a legal CAA /EASA definition of "aerial work" and the medical requirement associated with such .
Much appreciated fly safe

[deltahotel]

Aerial work is any paid work undertaken by an aircraft (other than public transport

https://www.caa.co.uk/Commercial-industry/Aircraft/Operations/Types-of-operation/Aerial-Work/

[deltahotel]

https://www.caa.co.uk/media/jgbgqgsn/0-medical-certificate-validity-table-may2022.pdf