
1) April observance 2) Festival in England
Found on
https://www.crosswordclues.com/clue/hocktide

Hocktide or Hock tide is a very old term used to denote the Monday and Tuesday in the week following the second Tuesday after Easter. It was an English mediaeval festival; it and the preceding Monday were the Hock-days. Together with Whitsuntide and the twelve days of Yuletide the week following Easter marked the only vacations of the husbandman`....
Found on
http://en.wikipedia.org/wiki/Hocktide

Hocktide is an old term for the Monday and Tuesday in the week following the second Sunday after Easter. It is a common legal term in mediaeval documents and local festivities were held at hocktide up to the start of the 20th century.
Found on
http://www.probertencyclopaedia.com/browse/AH.HTM
No exact match found.