Fix electronic stuff that's discarded, swapping parts (6)
I believe the answer is:
scrape
'fix electronic stuff' is the definition.
'scrape' can be an answer for 'fix' (both can mean a dangerous situation). I'm not sure about the 'electronic stuff' bit.
'discarded swapping parts' is the wordplay.
'discarded' becomes 'scrap' (synonyms).
'swapping parts' becomes 'e' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'scrap'+'e'='SCRAPE'
'that's' is the link.
Can you help me to learn more?
(Other definitions for scrape that I've seen before include "Capers (anag.)" , "Clean with edge of knife" , "hole" , "Abrasion or mischievous excapade" , "Informally, an awkward situation due to rashness" .)