Friendly alliance welcomed by independent enterprise (7)
I believe the answer is:
entente
'friendly alliance' is the definition.
(I've seen this before)
'welcomed by independent enterprise' is the wordplay.
'welcomed by' says the answer is hidden in the clue.
'ENTENTE' is hidden within 'independent enterprise'.
(Other definitions for entente that I've seen before include "A friendly underatanding between countries, may be cordiale" , "Friendly alliance between states" , "Friendly arrangement" , "Amicable agreement" , "Diplomatic agreement" .)