Hunt runs in frantic chase (6)
I believe the answer is:
search
'hunt' is the definition.
('search' can be a synonym of 'hunt')
'runs in frantic chase' is the wordplay.
'runs' becomes 'r' (cricket abbreviation).
'in' is an insertion indicator.
'frantic' indicates an anagram (I've seen this in other clues).
'chase' is an anagram of 'seach'.
'r' put inside 'seach' is 'SEARCH'.
(Other definitions for search that I've seen before include "Try to find something by looking" , "Go through" , "Pursue a chaser" , "Look thoroughly to find something" , "Comb" .)