Redhead in love provdies protection for warrior (6)
I believe the answer is:
armour
'provdies protection for warrior' is the definition.
I can't judge whether this defines the answer.
'redhead in love' is the wordplay.
'redhead' becomes 'r' (the head letter of red).
'in' indicates putting letters inside.
'love' becomes 'amour' ('love' in French).
'r' going into 'amour' is 'ARMOUR'.
Can you help me to learn more?
(Other definitions for armour that I've seen before include "Body plate" , "Old warrior's suit" , "Greave, sallet and cuirass are pieces of this" , "Metal or other protective plating for body" , "Protective body-plating" .)