All 3 Uses of

advocate
in
The Fountainhead

The Convention advocated careers for married women; the Wynand papers had fought against the employment of married women for many years.†
Chpt 3.1 *

advocated = recommended or publicly supported

I mean, the things he preaches, I've been wondering lately whether he really understands what he's advocating.†
Chpt 4.11

advocating = recommending or publicly supporting

Standing at a tall desk, a big blue pencil in his hand, he wrote on a huge sheet of plain print stock, in letters an inch high, a brilliant, ruthless editorial denouncing all advocates of careers for women.†
Chpt 3.1 *

Definitions:

(1) (advocate as in: to advocate)
to recommend or publicly support (someone or something)
(2) (advocate as in: an advocate supporting)
a person who publicly supports and works to advance a cause

or more rarely:

someone acting in the role of a defense lawyer in England's past and in some jurisdictions today
(3) (advocate as in: an advocate in court)
a lawyer or officer of the court in some jurisdictions in Europe, colonial America, and the military
(4) (devil's advocate as in: I'll play the devil's advocate)
a person who takes an unpopular position to encourage debate or test ideas