Phone for a replacement bowler (6)
I believe the answer is:
blower
'phone' is the definition.
(informal term for telephone)
'a replacement bowler' is the wordplay.
'a replacement' is an anagram indicator.
'bowler' with letters rearranged gives 'BLOWER'.
'for' acts as a link.
(Other definitions for blower that I've seen before include "Fan; telephone (colloq.)" , "It produces an air blast" , "Fan - phone" , "Fan - telephone (slang)" , "One producing current" .)