Each Friday without apprehension of danger (4)
I believe the answer is:
fear
'apprehension of danger' is the definition.
'fear' can be an answer for 'apprehension' (I've seen this before). I am unsure of the 'of danger' bit.
'each friday without' is the wordplay.
'each' becomes 'ea' (abbreviation).
'friday' becomes 'fr' (abbreviation).
'without' indicates putting letters inside.
'ea' placed within 'fr' is 'FEAR'.
Can you help me to learn more?
(Other definitions for fear that I've seen before include "Respect" , "Consternation" , "Fright" , "Anxiety caused by danger" , "Trepidation" .)