Career
Ismail has represented England at both under-16 and under-17 level Ismail is a product of Wolverhampton Wanderers" academy, which he joined at the age of 10. In 2008 his former academy manager said he could "see enormous money being spent on Zeli."
The midfielder signed his first professional contract in 2010, and made his senior debut on 25 September 2012 as a substitute in a 0–6 defeat at Chelsea in the League Cup under Ståle Solbakken.
In November 2012 he joined League One side Milton Keynes Dons on loan until 2 January 2013.
Upon the end of his initial loan period he was immediately re-loaned for the remainder of the campaign, but this was ended after a month as Ismail failed to establish himself in their first team Following Wolves" relegation to League One at the end of the 2012-2013 campaign, Ismail was cited by new manager Kenny Jackett as being part of his plans for the first team
Despite these games, Ismail did not hold down a regular place in the Wolves" team and, after not gaining any playing time at all during December 2013, he was loaned to League Two club Burton Albion in January 2014 in a one-month loan deal. He scored his first senior goal on 8 February 2014 to earn a 1–0 victory at Morecambe.
His loan stay was subsequently extended until the end of the season, allowing Ismail to play in the League Two Play-off Final for the Brewers, where they lost 0–1 to Fleetwood.
In July 2014, Ismail signed a six-month loan deal with League One N ottinghamshire County. He is contracted to Wolves until summer 2016 with the option of a further year. On 29 July 2015, it was announced that Ismail would return to former club Burton Albion on loan until January.
On 1 February 2016, Ismail joined Oxford United on a month"s loan.
On 5 March 2016 Ismail joined Cambridge United on loan until the end of the 2015-2016 season.