This is an extended hybrid connect-wall puzzle which fuses components of the most common PSE strain (where group connections also have one final connection, which is the puzzle's answer) with a variety of connecting methods used in the original BBC TV series, Only Connect. This means that not all groups are of the commonly used 'linking word which can precede/follow the given word' mould - bear that in mind!
Also, for this Connecting Wall, you will need to partition a larger number of clues (24 of them) into 6 sets of 4. Once all 6 sets are found, you need to provide a specific 4-letter word that links the 6 connections - this is the final answer for the puzzle.
(1) Partition this Connecting Wall into 6 sets of 4 clues (various connecting methods);
(2) Find the final 4-letter connection between the 6 connections.
(Note that once you pinpoint a couple of groups correctly, you may gain an idea as to where this is going and be able to find the others much more quickly!)