Welcome to Clueless 388, the informal weekly clue setting competition.
The idea is to compose a cryptic clue to a given word or phrase.
The winner of the previous week's competition both sets the word to be clued and judges the entries for the current week.
The judge's decision is final and reasons may or may not be given at the judge's discretion. It is customary for the judge to award a virtual prize to the winner.
Multiple entries may be submitted and new competitors are particularly welcome.
Clues should be submitted by 9pm BST on Wednesday 12 September with the winner being announced shortly after, all other things permitting. In this case “all other things” includes my long term propensity for stumbling into university buildings ...
The answer to be clued is:
PRIME (5)
Please parse your clue unless it's obvious, thanks.
Have fun.