Secure in bed yet unable to move? (7)
I believe the answer is:
blocked
'yet unable to move?' is the definition.
I can't judge whether this defines the answer.
'secure in bed' is the wordplay.
'secure' becomes 'lock' (locking is a kind of securing).
'in' indicates putting letters inside.
'lock' inserted inside 'bed' is 'BLOCKED'.
Can you help me to learn more?
(Other definitions for blocked that I've seen before include "Impeded" , "Prevented progress" , "Completely obstructed or closed off" , "Sealed off" .)