Small detachments of troops severely criticised about Italy’s uprising (7)
I believe the answer is:
details
'small detachments of troops' is the definition.
I can't tell whether this definition defines the answer.
'severely criticised about italy's uprising' is the wordplay.
'severely criticised' becomes 'slated' (slate can mean to criticise severely).
'about' means one lot of letters goes inside another.
'italy' becomes 'i'.
'uprising' says the letters should be written in reverse.
'slated' placed around 'i' is 'sliated'.
'sliated' reversed gives 'DETAILS'.
Can you help me to learn more?
(Other definitions for details that I've seen before include "Minutiae" , "Particulars, small parts" , "Small features" .)