Grand girl, typically transparent (5)
I believe the answer is:
glass
'typically transparent' is the definition.
I can't tell whether this definition defines the answer.
'grand girl' is the wordplay.
'grand' becomes 'g' (G is short for grand as in a thousand).
'girl' becomes 'lass' (lass can informally mean a girl).
'g'+'lass'='GLASS'
Can you help me to learn more?
(Other definitions for glass that I've seen before include "such as one might hold at party" , "(Material used in) mirror" , "Watch-face cover" , "Telescope perhaps" , "measure of wine" .)