The headword, aorist active participle, masculine singular nominative, of the verb
dramatourge/w is treated in a recognizably related fashion in
Synagoge delta359 and
Photius,
Lexicon delta744. However, as glosses both lexica have participles from the verb
sunti/qhmi ('put together, compose') rather than the participle of
suni/hmi that we find here. Theodoridis' text of
Photius, on the evidence of the reading of the newly recovered Zavordensis ms, restores
sunqei/s ('having composed'), which surely ought to have been (if it wasn't actually) what the Suda compiler wrote as well (as suggested already by Portus in his 1630 edition of the Suda). The Suda's gloss,
sunei/s, has a range of meanings that could conceivably encompass 'putting together' in the sense of 'composing', and this possibility is reflected in the translation given, but it would hardly be a normal use of this word.
The headword itself must be quoted from somewhere; extant possibilities occur in the Christian writers Epiphanius and Philostorgius, where it is frequently used to describe the misguided imaginings of theological adversaries. It can also be applied as a theatrical metaphor for "staging" or manipulating political situations (e.g. Anna Comnena,
Alexias 1.12.9.7, although in a different form), or to wicked machinations in general, hence
Hesychius' glossing (delta2312) of the infinitive of the verb as
panourgei=n ('to be unscrupulous') -- though contrast the more neutral treatment
Hesychius gives to a different form of the verb at epsilon509.