Conjecture sport will return after one month (5)
I believe the answer is:
augur
'conjecture' is the definition.
Although both the answer and definition are singular nouns, I cannot understand how they can define each other.
'sport will return after one month' is the wordplay.
'sport' becomes 'RU' (rugby union).
'will return' says the letters should be written backwards.
'after' says to put letters next to each other.
'one month' becomes 'Aug' (abbreviation for August).
'ru' in reverse letter order is 'ur'.
'ur' after 'aug' is 'AUGUR'.
Can you help me to learn more?
(Other definitions for augur that I've seen before include "Bode, foretell" , "Prognosticate" , "Be an omen (of) - Roman religious official" , "forecast" , "Foreshadow" .)