Cyclone + Naaresh

Sounds legit to me.

He can indeed cast a spell - it's the 'any time' after moving, and before making an attack.

So long as the charge move results in a 'successful charge' state, then the activation is still going on. E.g. we see this when a successful charge happens and other response abilities trigger before you make the attack - admonition, etc.


To be explicit. "Charge" is something you choose when resolving your Normal Movement (pg 30) 

Pg 31: "A charging model that is engaging its charge target at the end
of its charge movement has made a successful charge. The
charging model must use its Combat Action to make either
initial melee attacks or a special attack with a melee weapon.

The charging model’s first melee attack after ending its charge
movement must target the model it charged. If the charging
model advanced at least 3˝, its first attack with a melee
weapon targeting the model it charged is a charge attack"


So, you resolve Normal Movement - Charge. If not successful, activation immediately ends. If successful, activation continues (NB: you have not yet begun your Combat Action.) There is now immediately a timing opportunity to cast a spell after movement, but before attacking in your combat action. Once the spell is resolved, continue into the Combat Action which then requires you to make the melee attack targeting the charged model etc etc. 



Edit: One last note. The final paragraph shows you can also do this tactic, but Cyclone off towards another model entirely - e.g. bounce off a grunt, into a caster. Tho you lose the Charge boost:

"If the charging model did not fail its charge and cannot make
its first melee attack against the charge target, the charging
model can make its first melee attack against another eligible
target. In that case, its first melee attack damage roll is not
automatically boosted"