The most common and most likely answer to this crossword clue is the 6 plus 2 plus 7 letter word CENTRE OF GRAVITY
I've seen this crossword clue in The Guardian
C
E
N
T
R
E
O
F
G
R
A
V
I
T
Y
More clues leading to the result CENTRE OF GRAVITY
- Where Force acts also leads to violence and vandalism
- Fatty recovering after surgery to alter this?
- Ferret gone, virtually spiralling into hole where downward force acts
- Criminal forgery in VAT etc? Force must act here!
- This may move up if recovering fatty exercises!
- Through which weight falls very little?
- Location where forces combine — the Old Bailey, perhaps?
Buddy explains!
The straight part
We know that "Force must act here" is the straight/definition part of the clue. The straight part is often a synonym or definition, in this case force must act here = centre of gravity.The cryptic/wordplay part
In cryptic crossword there's often an wordplay/cryptic part as well.This part involves a more complex hint, such as an anagram, homophone, hidden word, etc.
Sadly, We don't have an explanation for this specific crossword clue yet.