Two knights full of love and feeling for bull! (8)
I believe the answer is:
nonsense
'for bull' is the definition.
(I've seen this before)
'two knights full of love and feeling' is the wordplay.
'two knights' becomes 'nn' (the chess abbreviation for knight written twice. I am not sure about the 'two' bit.).
'full of' indicates putting letters inside.
'love' becomes 'o' (love means zero in tennis).
'and' means one lot of letters go next to another.
'feeling' becomes 'sense' (feeling can mean a sensation).
'nn' going around 'o' is 'non'.
'non'+'sense'='NONSENSE'
Can you help me to learn more?
(Other definitions for nonsense that I've seen before include "Gobbledegook" , "Cobblers" , "tripe" , "rhubarb" , "Rubbish, drivel" .)