Bargain-hunters her gals, out to claim goods primarily (8)
I believe the answer is:
hagglers
'bargain-hunters' is the definition.
(people who haggle for a better price)
'her gals out to claim goods primarily' is the wordplay.
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'to claim' indicates putting letters inside.
'primarily' indicates taking the first letters.
The first letter of 'goods' is 'g'.
'her'+'gals'='hergals'
'hergals' is an anagram of 'haglers'.
'haglers' enclosing 'g' is 'HAGGLERS'.
(Another definition for hagglers that I've seen is " They bargain to get the price down".)