Looking tired, yet just about in bed early for a change (6-4)
I believe the answer is:
bleary-eyed
'looking tired yet' is the definition.
I can't judge whether this defines the answer.
'just about in bed early for a change' is the wordplay.
'just' becomes 'ye' (I can't explain this - if you can you should give a lot more credence to this answer).
'about' indicates putting letters inside.
'in' means one lot of letters goes inside another.
'for a change' is an anagram indicator.
'early' with letters rearranged gives '[early]'.
'bed' placed around '[early]' is 'b[early]ed'.
'ye' put inside 'blearyed' is 'BLEARY-EYED'.
Can you help me to learn more?
(Other definitions for bleary-eyed that I've seen before include "Obviously tired" , "Looking very tired" , "Unperceptive" , "Looking half-awake" , "Looking sleepy" .)