Wrap up certain short series (8)
I believe the answer is:
surround
'wrap up' is the definition.
(thesaurus)
'certain short series' is the wordplay.
'certain' becomes 'sure' (synonyms).
'short' means to remove the last letter.
'series' becomes 'round' (I've seen this before).
'sure' with its final letter removed is 'sur'.
'sur'+'round'='SURROUND'
(Other definitions for surround that I've seen before include "Encircle, fence in" , "Ring" , "Encompass" .)