Shy and introspective, so expelled? Just the opposite (7)

I believe the answer is:
indrawn
'shy' is the definition.
(I've seen this before)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for indrawn that I've seen before include "Breath so sharply" , "Shy; inhaled" , "Taken in, like the breath" , "sucked in" .)
