Play, with Act One terribly unorthodox (8)
I believe the answer is:
atypical
'unorthodox' is the definition.
Both the answer and definition are adjectives. Maybe there's a link between them I don't understand?
'play with act one terribly' is the wordplay.
'with' means one lot of letters go next to another.
'one' becomes 'i' (Roman numeral).
'terribly' indicates anagramming the letters.
'act'+'i'='acti'
'play' after 'acti' is 'actiplay'.
'actiplay' is an anagram of 'ATYPICAL'.
Can you help me to learn more?
(Other definitions for atypical that I've seen before include "Not representative or usual" , "Not conforming to a norm or average" , "Unrepresentative" , "Unusual" , "Irregular" .)