One abused, without love and quite alone (8)
I believe the answer is:
isolated
'quite alone' is the definition.
(isolated means completely alone)
'one abused without love' is the wordplay.
'one' becomes 'i' (Roman numeral).
'abused' becomes 'slated' (slate can mean to abuse or criticise harshly).
'without' indicates putting letters inside ('without' can be similar in meaning to 'outside').
'love' becomes 'o' (love means zero in tennis).
'slated' placed around 'o' is 'solated'.
'i'+'solated'='ISOLATED'
'and' acts as a link.
(Other definitions for isolated that I've seen before include "kept separate" , "Solitary" , "kept apart from others" , "Placed apart from others" , "Quarantined, alone" .)