Father with lawsuit getting tiny amount (8)
I believe the answer is:
fraction
'tiny amount' is the definition.
'fraction' can be an answer for 'amount' (fraction is a kind of amount). I'm not sure about the 'tiny' bit.
'father with lawsuit' is the wordplay.
'father' becomes 'fr' (abbreviation as in a priest's title).
'with' means one lot of letters go next to another.
'lawsuit' becomes 'action' (synonyms).
'fr'+'action'='FRACTION'
'getting' is the link.
Can you help me to learn more?
(Other definitions for fraction that I've seen before include "Small piece forming part of a whole" , "Inca fort (anag)" , "Fragment" , "Not a whole number - it's smaller" , "may be improper" .)