Changing an existing citation to date-only e.g. Smith (2009) states ...

Adding only the year into an in-text citation

Changing your mind

If you have inserted author and date, but later change the style of the sentence to use the author(s) directly in the text, you need to remove the author from within the citation

Sometimes you may have elected to insert author and date, but later change the style of the sentence to use the author(s) directly in the text, so you may want to remove the author from within the citation.

Select the citation

Insert your citation as usual, then click once on the citation in Word to select it.
The background of the citation should turn a pale grey.

Edit the citation

In Word 2007, select the EndNote tab from the "ribbon", then click on Edit Citation(s).

In Word 2003, from the Tools menu, Endnote, then select Edit Citation(s), or use the button on the EndNote toolbar.

Exclude the author

In the Edit Citation dialog box, select the Exclude author option, then click the OK button.

Check the citation

The author should now be excluded from the in-text citation, but the entry in the reference list is unaffected.