Family servant Eritrean bashed (8)
I believe the answer is:
retainer
'family servant' is the definition.
(I've seen this before)
'eritrean bashed' is the wordplay.
'bashed' is an anagram indicator.
'eritrean' anagrammed gives 'RETAINER'.
(Other definitions for retainer that I've seen before include "Old servant - preliminary fee" , "Holding fee or faithful old servant" , "money to be paid in advance" , "Part payment down for an old servant" , "Fee paid to book professional services" .)