Blue Peter is a children's TV programme that has been running for years. A phrase often used is, "Here's one I made earlier" e.g. when creatively making things out of egg cartons and milk bottles. People say this in other contexts.
The NISCC is the Northern Ireland Social Care Council
N/A stands for "Not Applicable" and should be written in response to questions that don't apply to you on an application form e.g. What is your National Insurance number? If you haven't lived or worked in the UK before, you won't have one, so you write N/A. If you leave the question blank, we may think you missed the question, so you have to write something!
The CCW - Care Council for Wales registers Social Workers who work in Wales - https://socialcare.wales/
Read the instructions on an application form carefully - and follow them!
Listen to Taxman is a web calculator that shows the tax and national insurance deductions you would pay on gross salary, to give you an approximate net salary.
The DfE is the Department for Education and is the government department responsible for children and young people. It used to be called the DCSF (Department for Children Schools and Families)
Tax is administered by HM Revenue and Customers - otherwise known as "the tax man."
Scottish Social Services Council (SSSC) register Social Workers who work in Scotland