Hit German trio picked up salon job (4-3)
I believe the answer is:
blow-dry
'trio picked up salon job' is the definition.
I can't judge whether this definition defines the answer.
'hit german' is the wordplay.
'hit' becomes 'blow' (blow can mean a hit).
'german' becomes 'dry' (I can't justify this - if you can you should give a lot more credence to this answer).
'blow'+'dry'='BLOW-DRY'
Can you help me to learn more?
(Other definitions for blow-dry that I've seen before include "Way of setting hair" , "Style hair with hot air" .)