Strange; uneven (3)
I believe the answer is:
odd
This clue is a double definition.
'strange' is the first definition.
(I've seen this before)
'uneven' is the second definition.
(I've seen this in another clue)
(Other definitions for odd that I've seen before include "standing out from the crowd?" , "Peculiar in uneven way" , "Left over" , "Rum" , "Casual" .)