Get working with radar industry (3,5)
I believe the answer is:
rag trade
'industry' is the definition.
(I've seen this before)
'get working with radar' is the wordplay.
'working with' is an anagram indicator (working with the letters).
'get' anagrammed with 'radar' can make 'RAG TRADE'.
(Other definitions for rag trade that I've seen before include "The couture business" , "Slang for the garment industry" , "Clothing business (informal)" , "newsagent's business?" , "Informal description of clothing industry" .)