Dad's wrong to take one to court! (6)
I believe the answer is:
addict
'dad's wrong to take one to court' is the definition.
I can't tell whether this defines the answer.
'dad's wrong to take one to court' is the wordplay.
'wrong' indicates an anagram.
'to take' says to put letters next to each other.
'one' becomes 'i' (Roman numeral).
'to court' becomes 'ct' (abbreviation used in road names).
'dad' anagrammed gives 'add'.
'add'+'i'+'ct'='ADDICT'
Can you help me to learn more?
(Other definitions for addict that I've seen before include "Bricklayer's tool" , "One unable to kick habit" , "One who's hooked" , "Make dependent" , "One who is dependent on something, alcohol say" .)