Girl having row with one Argentinian president (8)
I believe the answer is:
galtieri
'president' is the definition.
(I've seen this before)
'girl having row with one argentinian' is the wordplay.
I cannot quite understand how this works, but
'girl' could be 'gal' (synonyms) and 'gal' is present in the answer.
'row' could be 'tier' (a tier is a row of things) and 'tier' is located in the answer.
'one' could be 'i' (Roman numeral) and 'i' is found in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Another definition for galtieri that I've seen is " President".)