Dick about in Bible study? That's not easy! (7)
I believe the answer is:
richard
'dick' is the definition.
(Dick is a nickname for Richard)
'in bible study? that's not easy' is the wordplay.
'in bible study?' becomes 'ric' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'that's not easy' becomes 'hard' ('hard' is the opposite to 'easy').
'ric'+'hard'='RICHARD'
'about' acts as a link.
Can you help me to learn more?
(Other definitions for richard that I've seen before include "Branson or Cliff" , "He died at Bosworth" , "'Beau' Nash's first name" , "Cliff --; -- Wagner" , "man" .)