Not free to take Diane off to church (7)
I believe the answer is:
'not free to' is the definition.
I can't tell whether this definition defines the answer.
'diane off to church' is the wordplay.
'off' indicates an anagram.
'to' says to put letters next to each other (I've seen this in other clues).
'church' becomes 'ch' (common abbreviation).
'diane' anagrammed gives 'ained'.
'ained' put after 'ch' is 'CHAINED'.
'take' is the link.
Can you help me to learn more?
(Another definition for chained that I've seen is " In fetters".)