Deck, subhead, lede, standfirst? This glossary of journalism terms attempts to disentangle the knotty web of conflicting in-house jargon used in US and UK periodical publishing. It's probably safe to assume that whatever we use at A Level, you'll find yourself working at a place where they'll scoff and tell you the real word (that they happen to use).
http://www.journalism.co.uk/terms-definitions-dictionary-terminology-words/s54/
