Sheffield Wednesday boss Stuart Gray says he is 'very close' to wrapping up a loan deal for a new striker.
Ipswich boss Mick McCarthy says he refused to be 'blackmailed' when it came to Tyrone Mings' future over the summer.
Manager Peter Taylor has moved to bring in Hewitt with current right-back Michael Harriman away on international duty with the Republic of Ireland Under-21 squad.
Highly-regarded Hewitt, 19, signed for Ipswich from Macclesfield in the summer of 2012 but has not yet nailed down a regular first-team place at Portman Road, making 12 appearances.
He will now look to add to his experience at Priestfield, starting with Saturday's League One trip to Sheffield United.