25 down
Acceptable
to
interrupt
a
jabber?
(5)
Acceptable to interrupt a jabber? (5)
hints
0
checks
0
hints
The definition is at the end of the clue.
How the clue works
OK means "acceptable" and it interrupts (sits inside) PER, meaning "a" (as in "20 miles per hour" = "20 miles a hour"), giving P-OK-ER. The definition is jabber? — a poker jabs at the fire, hence the question mark.