The most common and most likely answer to this crossword clue is the 7 letter word UNCANNY
I've seen this crossword clue in The Guardian
U
N
C
A
N
N
Y
More clues leading to the result UNCANNY
- Creepy posh governess nurses cold
- A French tin nearly empty? That’s weird
- Upper-class Conservative, coddled by governess – bizarre
- Strange uniform governess put conservative leader in
- Weird coincidence initially covered up by university childminder
- Wonderfully skilled peacekeepers preserve city
- Not clever, but weird
- Bread roll topped with cunning? That’s weird
- Everyone can see childminder taking cocaine is unnatural
- Weird upper-class grandma enthralling children at the outset
Buddy explains!

The straight part
We know that "Strange" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case strange = uncanny.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 UNCANNY mean?
UNCANNY noun- (Freud) Something that is simultaneously familiar and strange, typically leading to feelings of discomfort; translation of Freud's usage of the German "unheimlich" (literally "unsecret").
- Strange, and mysteriously unsettling (as if supernatural); weird.
- Careless.