Body of Fianna Fail support it's going up (5)
I believe the answer is:
stiff
'body' is the definition.
(I know that body is a type of body)
'fianna fail support it's going up' is the wordplay.
'fianna fail' becomes 'ff' (this might be a standard abbreviation which I don't know about).
'support' is a charade indicator (letters next to each other) (in a down clue, some letters hold others up).
'going up' says the letters should be written in reverse.
'its' backwards is 'sti'.
'ff' put after 'sti' is 'STIFF'.
'of' acts as a link.
Can you help me to learn more?
(Other definitions for stiff that I've seen before include "Rigid, unbending" , "Unfriendly" , "Difficult" , "Starched, rigid" , "One dead" .)