Looks like a 19th Century baptism - but here's a couple of 18th Century interpretations
1, 1702, John Kersey's a New English Dictionary
"An Hegler, or seller of provisions by retail"
2. 1721, Nathan Barley's An Universal Etymological English Dictionary
"Hegler, a Forestaller or Huckster, on who brings provisions which are brought out of the Country, in order to sell them again by retail"
3 . 1800, Guiseppe Marco Antonio Baretti's A Dictionary of Spanish and English "Hegler or Higler or Higgler - one that brings from the country to London, eggs, butter and fowls" (note Spanish equivalent not included but availabe if wanted!!)