Lecture about a fine force's framework (8)
I believe the answer is:
scaffold
'framework' is the definition.
(I've seen this before)
'lecture about a fine force's' is the wordplay.
'lecture' becomes 'scold'.
'about' indicates putting letters inside.
'a fine' becomes 'af' (I've seen this in other clues**).
'force' becomes 'f' (symbol used in Physics e.g. f=ma).
'af'+'f'='aff'
'scold' placed around 'aff' is 'SCAFFOLD'.
(Other definitions for scaffold that I've seen before include "Gibbet" , "Framework formerly for executions" , "place to hang" , "1960s group?" , "sort of capital punishment!" .)