Sailor transports hot American fellow to date (4,3)
I believe the answer is:
thus far
'to date' is the definition.
(I've seen this in another clue)
'sailor transports hot american fellow' is the wordplay.
'sailor' becomes 'tar' (term for a sailor).
'transports' is an insertion indicator.
'hot' becomes 'h' (abbreviation eg on taps).
'american' becomes 'US' (abbreviation for United States).
'fellow' becomes 'F' (abbreviation - of a society etc.).
'h'+'us'+'f'='husf'
'tar' enclosing 'husf' is 'THUS FAR'.
(Other definitions for thus far that I've seen before include "'Up to now (4,3)'" , "Up to this point" .)