Father put back a good card quickly (5)
I believe the answer is:
apace
'quickly' is the definition.
(I know that quickly can be written as apace)
'father put back a good card' is the wordplay.
'father' becomes 'pa' (pa can mean dad or father).
'put back' says the letters should be written in reverse.
'a good card' becomes 'ace' (ace is a type of playing card. I am not sure about the 'good' bit.).
'pa' in reverse letter order is 'ap'.
'ap'+'ace'='APACE'
Can you help me to learn more?
(Other definitions for apace that I've seen before include "What's quickly" , "at high speed" , "Swiftly, quickly" , "(Move on) swiftly" , "Quick" .)