Shopkeeper burst into tears (9)
I believe the answer is:
stationer
'shopkeeper' is the definition.
(I've seen this before)
'burst into tears' is the wordplay.
'burst' indicates an anagram.
'into'+'tears'='intotears'
'intotears' with letters rearranged gives 'STATIONER'.
(Other definitions for stationer that I've seen before include "bookseller" , "source of writing materials" , "Retailer of writing materials etc" , "Seller of writing materials" , "Seller of paper, pens, etc" .)