Father trapped after losing head is feeling anxious (7)
I believe the answer is:
fraught
'anxious' is the definition.
(I've seen this before)
'father trapped after' is the wordplay.
'father' becomes 'fr' (abbreviation as in a priest's title).
'trapped' becomes 'aught' (I can't explain this - if you can you should give a lot more credence to this answer).
'after' is a charade indicator (letters next to each other).
'fr'+'aught'='FRAUGHT'
'losing head is feeling' is the link.
This may not be right. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for fraught that I've seen before include "Emotionally charged" , "anxious" , "Distressed" , "Charged (with); tense" , "great anxiety" .)