Excellent lingerie, very alluring up-front (5)
I believe the answer is:
brava
'excellent' is the definition.
(I've seen this before)
'lingerie very alluring up-front' is the wordplay.
'lingerie' becomes 'bra' (I can't justify this - if you can you should give a lot more credence to this answer).
'up front' suggests taking the first letters (the letter at the front of the word).
The initial letters of 'very alluring' is 'va'.
'bra'+'va'='BRAVA'
Can you help me to learn more?
(Other definitions for brava that I've seen before include "1 across - - , Sp. coastal region" , "Spanish 23" , "Excellent" , "Spanish Costa" , "Approving cry (to diva)" .)