Lived in Iowa somewhere (3)
I believe the answer is:
was
'lived' is the definition.
('be' can be a synonym of 'live')
'in iowa somewhere' is the wordplay.
'in' indicates a hidden word.
'WAS' is hidden within 'iowa somewhere'.
(Other definitions for was that I've seen before include "Lived" , "Existed in the past" , "(He/she) existed" , "(I/he/she/it) existed" , "'Is, in the past (3)'" .)