Terror haunt tins minced beefcake and bully (6,3,6)
I believe the answer is:
dennis the menace
'terror haunt' is the definition.
I know nothing about this answer so I cannot judge whether it can be defined by this definition.
'tins minced beefcake and bully' is the wordplay.
I cannot quite see how this works, but
an anagram of 'tins' is 'nist' which is within the answer.
'and' could be 'n' (common abbreviation for 'and') and 'n' is found within the answer.
'bully' could be 'menace' (I've seen this in another clue) and 'menace' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for dennis the menace that I've seen before include "cartoon character" , "As children's character" , "Young tearaway" , "Young imp" .)