p = quiet + ret = soak with the "other bit " inside
What to do for the other bit comes from the 3 word phrase from the 11 extra letters. The 11 letters spell out an instruction of what to do with the italicised clues
Hi folks. give me a nudge to finish.
7d LE??E? climbing ridge stopped by very black tree
14a DUE?LO Be ahead going west and see town
Both Non thematic.