Man using current account to cover appeal (5)
I believe the answer is:
isaac
'man' is the definition.
(I've seen this before)
'current account to cover appeal' is the wordplay.
'current' becomes 'i' (symbol for electric current).
'account' becomes 'ac'.
'to cover' indicates putting letters inside.
'appeal' becomes 'sa' (old-fashioned abbreviation for sex appeal).
'i'+'ac'='iac'
'iac' enclosing 'sa' is 'ISAAC'.
'using' is the link.
(Other definitions for isaac that I've seen before include "Put away" , "Abraham's son" , "Biblical patriarch" , "Abraham, --, Jacob" , "OT near-sacrificial victim" .)