Click the Berg Fashion Library link in the A-Z list of databases.
Check under Help for the Basic Guide for Conducting Searches.
The library does not have any physical copies.
The WWD web link has full text for the last 12 months and is searchable back to 1994.
There are articles refering to WWD in LexisNexis.
Searching in WWD
Searching in Lexis/Nexis
You can locate articles referring to WWD, but not from WWD. Search for 'WWD' or 'women's wear daily'