Crossword answers

[Amy Z]

Wotan wrote:

> 19a for Friday 16 March, the main crossword. Clue was 'Fish caught 
by 
> chance, once'. Four letters. Second letter 'h', last letter 'p'.

Please, whenever the answer is published, post it.  I could go crazy 
trying to figure this one out.  I keep thinking "chip" but I can't 
make it work logically.

Isn't there a Ruth Rendell story about someone who invents cryptic 
clues in his head all the time, who goes slowly mad (as 90% of her 
characters do)?

Amy Z