Crossword Genius

It's weird seeing number two dressed in blue (6)

Ross

I believe the answer is:

spooky

I'm a little stuck... Click here to teach me more about this clue!

'it's weird' is the definition.
(I've seen this before)

'number two dressed in blue' is the wordplay.
'number two dressed' becomes 'poo' (I can't explain this - if you can you should give a lot more credence to this answer).
'in' is an insertion indicator.
'blue' becomes 'sky' (I've seen this in other clues).
'poo' inserted within 'sky' is 'SPOOKY'.

'seeing' is the link.

Can you help me to learn more?

(Other definitions for spooky that I've seen before include "Rather frightening" , "Eerie" , "Chilling" , "Sinister, ghostly" , "weird" .)

I've seen this clue in The Guardian.
Want a hint initially instead of a full solution? Install my app