The most common and most likely answer to this crossword clue is the 8 letter word EYESORES
I've seen this crossword clue in The Daily Telegraph
E
Y
E
S
O
R
E
S
More clues leading to the result EYESORES
- Sties are blots on the landscape
- European agreement covers putting up pink monstrosities
- Inspect damaged roses for blemishes
- No good monsters follow Erebus’s lead, of course, they’re ugly things
- Sure soldiers understand about facing horrors
- Monstrosities seeing English rose upset after word of agreement
- Unease rose, yet sent back to take in sights
- These are irritating for sightseers, naturally
- Looks at lumps of mineral? Ugly things
- Sights to look around, taking in ruins of timeless Troyes
Buddy explains!

The straight part
We know that "Ugly things" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case ugly things = eyesores.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.
What does EYESORES mean?
EYESORES noun- An eye lesion.
- A displeasing sight; something prominently ugly or unsightly.