
1) Acorn Archimedes game
Found on
https://www.crosswordclues.com/clue/provocator

Provocator is an award winning shoot `em up computer game developed for the Acorn Archimedes range of computers. It was the first game by Network 23 and was published in the summer of 1991 by C.T.S. (Computer Tutorial Services) to critical acclaim. The game requires the player to protect a massive convoy of space craft as they pass through 32 wav....
Found on
http://en.wikipedia.org/wiki/Provocator
[gastropod] Provocator is a genus of sea snails, marine gastropod mollusks in the family Volutidae. Species within the genus Provocator include: ...
Found on
http://en.wikipedia.org/wiki/Provocator_(gastropod)

The provocator (challenger) was distinguishable by a helmet without crest, a curved rectangular shield, and a sword with a straight blade. In addition, the provocator was the only gladiator to have effective protection for the upper body: a rectangular breastplate. The provocator thus lacked what was a badge of honour for other heavily-armed gladia…...
Found on
http://www.encyclo.co.uk/visitor-contributions.php
No exact match found.