Ancient tombs perplex urban Bonnie (11)
This is Brú na Bóinne (rearranged urban Bonnie), which are ancient tombs in Ireland.
Magic sleek hill mixed is small island (14)
This is Skellig Michael (mixed Magic sleek hill), a small twin-peaked island in County Kerry, Ireland.
Small island's hidden twin is Moroccan (7)
This is the small island of Inis Mor, hidden in twIN IS MORoccan.
Dramatic sound and additional grotto are underground site (11)
Dunmore Cave is an underground site (dun dun dunnnn... + more
Ooh, runic altar stirs up a mountain! (13)
The tallest mountain in Ireland is Carrauntoohil, (ooh runic altar stirred up).
Headless woman and painful marking inside satellite mountain (12)
Mount Brandon, first climbed by St. Brendan the Navigator. ("AUNT" - A = "UNT" + painful marking "BRAND" inside satellite "MOON" = MO + UNT + BRAND + ON).
Rock formation Goliaths make a road happen (14)
Giant's Causeway, a rock formation in Northern Ireland (Goliaths are Giants, they cause the way).
Richard and Robertson owned by heartless relative are rocky landforms (13)
Cliffs of Moher, a series of rocky landforms (Cliff Richard and Cliff Robertson + MOTHER - T).
Gung-ho heal disfigured lake (10)
The largest freshwater lake in Ireland is Lough Neagh (gung-ho heal, disfigured).
Grieve Spanish website mountain range (7)
This is the Mournes mountain range, (MOURN + .ES)
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