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 defines the answer.
'severely criticised about italy's uprising' is the wordplay.
'severely criticised' becomes 'slated' (slate can mean to criticise severely).
'about' is an insertion indicator.
'italy' becomes 'i'.
'uprising' is a reversal indicator.
'slated' going around 'i' is 'sliated'.
'sliated' written backwards 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" .)