Chance ordering teas first to star (8)
I believe the answer is:
asterisk
'to star' is the definition.
(synonyms)
'chance ordering teas first' is the wordplay.
'chance' becomes 'risk' (synonyms).
'ordering' is an anagram indicator.
'first' means one lot of letters go next to another.
'teas' anagrammed gives 'aste'.
'risk' put after 'aste' is 'ASTERISK'.
(Other definitions for asterisk that I've seen before include "star-shaped figure" , "Textual reference symbol" , "Sign" , "Star-like symbol as reference mark" , "Star on a page" .)