Greek island runs hot with poems by Sappho? (6)
I believe the answer is:
rhodes
'greek island' is the definition.
(Rhodes is a Greek island)
'runs hot with poems by sappho?' is the wordplay.
'runs' becomes 'r' (cricket abbreviation).
'hot' becomes 'h' (abbreviation, eg on taps).
'with' says to put letters next to each other.
'poems by sappho?' becomes 'odes' (I've seen this in another clue).
'r'+'h'+'odes'='RHODES'
(Other definitions for rhodes that I've seen before include "British imperialist; Greek island" , "See 21 Down" , "Greek port" , "Hordes visit the Greek island" , "Shored (anag) - Greek island" .)