Even if there are scholars who considered the name al-fatir الفاطر or fatir-u as-Samawaati wa l-Ard فاطِرُ السماوات و الأرض as part of the names of Allah neither of both is quoted in the hadith of Imam at-Tirmidhi, so those scholars whom have quoted them have done Ijtihad to conclude these names as names or attributes of Allah. (see for example in wikipedia AR, EN)
Note that the only attribute which comes from Quran among this both names is فاطِر السماوات و الأرض (fatir-a as-Samawaati wa l-Ard) and here it means Creator of the heavens and the earth
Note that as ashes999 in his answer on Is naming a person using one of Allah's names allowed? quoted the alif-lam (al-, ar- , etc.) prefix is important as without it the uniqueness or emphasize of this attribute to Allah would be absent. However a few exception of this rule exists like dhu l-Jalali wa l-Ikraam ذو الجلال والإكرام ...
فاطِر Fatir isn't therefore a name which is attributed to Allah however the meaning can differ from the creator once it is related to الفاطر or creator or a person who breaks its fast or don't fast, however مُفْطِر (muftir) is a -linguistically- better attribute to describe such a person.
Also in Arabic one says:
وَلَدٌ فَاطِرٌ : طَلَعَتْ نَابُهُ
A boy whom's eyetooth came out
the verb fatara فطَرَ can also mean that to split etc.
On the whole one could conclude that Fatir can be accepted as a name as well as Abdu- l-Fatir عبد الفاطر.