  We introduce a simple model of dynamical supersymmetry breaking. It is like a
supersymmetric version of a Nambu--Jona-Lasinio model with a spin one
composite. The simplest version of the model as presented here has a single
chiral superfield (multiplet) with a four-superfield interaction. The latter
has the structure of the square of the superfield magnitude square. A vacuum
condensate of the latter is illustrated to develop giving rise to supersymmetry
breaking with a soft mass term for the superfield. We report also the effective
theory picture with a real superfield composite, illustrating the matching
effective potential analysis and the vacuum solution conditions for the
components. The nature of its fermionic part as the Goldstone mode is
presented. Phenomenological application to the supersymmetric standard model is
plausible.
