What is the answer please to 24 across.Sunday Times crossword 4285.
Clue = "Showing no feeling,prisoner grabs one twice"
Known letters = "I?A?I?S?E"
What are the answers to, 7 across " Personal weapon provided by firm on the quiet" C??? 8 down "To pinch pennies,little money invested in stocks and shares" ??R?M? Many thanks in advance.