The term 'SEE 38-DOWN' refers to the answer to the clue 'PERIMETER' (9 letters). The answer is 'MENHAHNMARX', which is a combination of the words 'MEN' (3 letters), 'Hahn' (4 letters), and 'Marx' (4 letters). Other solutions to the crossword include 'BRA CAT END KEY PAR PIN TIP ANON BABE CTRS ENDS OCAT RAGE TREE ABOUT ALEAD AWEKK EGGAR NGWAY RACER' (all 3-5 letters) and 'FRANKLLOYDWRIGHT' (16 letters). These words are all related to the theme of the crossword, which is likely to be something related to architecture, as the clue 'PERIMETER' suggests.