Pledged to provide more dips, possibly (8)
I believe the answer is:
promised
'pledged' is the definition.
(synonyms)
'more dips possibly' is the wordplay.
'possibly' indicates an anagram.
'more'+'dips'='moredips'
'moredips' with letters rearranged gives 'PROMISED'.
'to provide' acts as a link.
(Other definitions for promised that I've seen before include "undertaken" , "Made a commitment to do" , "Betrothed" , "Gave one's word, pledged" , "swore" .)