The most common and most likely answer to this crossword clue is the 11 letter word HORN-RIMMED
I've seen this crossword clue in The Guardian
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Buddy explains!
The straight part
We know that "describing spectacles, perhaps" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case describing spectacles, perhaps = horn-rimmed.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 HORN-RIMMED mean?
HORN-RIMMED adjective- (of eyeglasses) Having the frames made from horn or tortoiseshell or a material that resembles it, and characterized by their bold appearance on the wearer's face, in contrast to metal frames, which appear less pronounced.