In the early 1980s, Clemencia returned to Curaçao and began working as a Spanish teacher at the Peter Stuyvesant College, now the Kolegio Alejandro Paula, in Willemstad, Curaçao. A large part of her activism centered on the
Papiamento language and its suppression. By the early 1990s, she was serving as director of the
Instituto di Nashonal Sede di Papiamentu (National Institute of the Papiamento Language) to promote usage and teaching of the native language of Aruba, Bonaire and Curaçao. Because Papiamento has roots in the slave trade, there was little public support in preserving the language or teaching it in the Dutch school system. She advocated for the language to be standardized and taught, as it was the mother-tongue of the country. In a report prepared for UNESCO, Clemencia argued that Papiamentu and English should be declared the national languages of the Antilles. Clemencia also served as a supervisor in the Government Bureau of Linguistics. Clemencia co-wrote with Omayra Leeflang a text for teaching Papiamento entitled
Papiamentu Funshonal, which became a standard for secondary education instruction. Through her study of language, Clemencia wrote about women and their relationships to language and communication. The terms and customs that women used among themselves to give messages about themselves were one of the themes she often wrote about. As a member of the Caribbean Association of Women and Scholars (ACWWS), Clemencia participated in conferences and meetings to promote a feminist identity which recognized the diversity of women from the Caribbean and allow their contributions to be told in their own voice, be that Dutch, English, French, Spanish or
Creole languages, as the language used defines an identity strategy for the writer. Though an ardent feminist, Clemencia believed that general emancipation, including identity, independence and language, were critical elements in attaining political freedom. and campaigned vigorously for independence from The Netherlands. Though she combined her party's influence with 's
Party Workers' Liberation Front 30 May, they were defeated Shortly after the results, Clemencia withdrew from politics because of her private battle with breast cancer. ==Personal==