Despite the growing body of research on creativity, cultural production, and literary sociology, the social process through which writers become recognized cultural actors remains insufficiently theorized, particularly in non-Western contexts. Existing studies have largely focused on literary texts, publishing systems, and institutional structures while paying comparatively limited attention to the dynamic interactions through which writers construct their professional identities and acquire symbolic legitimacy. Addressing this theoretical gap, the present study develops a substantive grounded theory explaining how creative cultural action shapes the social formation of writers within the Algerian cultural field. The research employed a qualitative Grounded Theory methodology based on theoretical sampling and semi-structured interviews with published Algerian writers. Data collection and analysis proceeded simultaneously through the constant comparative method using open, axial, and selective coding until theoretical saturation was achieved. The analysis generated an explanatory model in which creative cultural action emerged as the core category integrating linguistic capital, creative freedom, symbolic legitimacy, digital mediation, and intergenerational cultural relations into a unified sociological explanation of writer formation. The findings demonstrate that becoming a writer is not an isolated literary achievement but an ongoing social process through which individuals negotiate identity, cultural belonging, institutional recognition, and symbolic authority within an evolving cultural field. Writers continuously mobilize cultural resources, reconstruct creative identities, and reposition themselves through interactions with readers, publishers, cultural institutions, and digital communication environments. Consequently, writer formation should be understood as a process of symbolic positioning rather than simply the production of literary works. The study contributes to contemporary cultural sociology by shifting analytical attention from literary products to the social production of creative actors. It further expands applications of Grounded Theory within cultural sociology by offering an empirically grounded explanatory framework capable of informing comparative studies of creative actors beyond the Algerian context.