A signal transduction process that contributes to a cell cycle checkpoint that delays the metaphase/anaphase transition of a meiotic nuclear division until the spindle is correctly assembled and that the chromosomes are attached to the spindle. [ GOC:mtg_cell_cycle ]
Synonyms: intracellular signaling cascade involved in meiotic spindle checkpoint intracellular signal transduction pathway involved in meiotic spindle checkpoint intracellular signal transduction involved in meiotic spindle checkpoint intracellular signaling pathway involved in meiotic spindle checkpoint meiotic spindle checkpoint