18 across
Very
good
supports
covering
us
when
blasting?
(8)
Very good supports covering us when blasting? (8)
hints
0
checks
0
hints
The definition is at the end of the clue.
How the clue works
The definition is covering us when blasting? — a cryptic way of describing pit props, the supports that protect miners during blasting underground. For the wordplay, take PI (very good, pious) followed by T (short for "the") and then PROPS (supports), and you've got it.