Crossword Help Forum
Forum Rules

Yes the herald is Scottish

I think boaster is more of a scottish term

http://earthwise.bgs.ac.uk/index.php/Glossary_of_terms_relating_to_building_stones_of_Edinburgh

I think it's the heat.....it says cold chisel but no mention of stone or bricks

Yes- ' a form of cold chisel'.

Thanks zozozo

Sorry, jazzgirl - I was replying only to the 'Bolster (as a chisel) is not shown in Chambers', I didn't look at the rest of the clue, the stuff about stone.

Does boaster win then ?
Herald should really accept either

Difficult to say - though the herald gk tends to favour Scottish terms

Interesting discussion .
After I "jumped in" with my early answer of bolster yesterday, I have to agree with boaster being the better answer. The images in google show it as a much heftier tool too.