Matching styles.

@@ -16,0 +17,2 @@
+<gloss>single-handedly (usu. of a male raising children)</gloss>
+<gloss>on one's own</gloss>
@@ -18,2 +19,0 @@
-<gloss>single-handedly</gloss>
-<gloss>on one's own (usu. of a male raising children)</gloss>

男手	28454	  (31% this structure, vs 75% for women)
男手が	7888	  
男手一つ	4898	  
男手ひとつ	4071	  
男手の	1510	  
男手は	1469	  
男手が必要	1229	  

男手一つ	4898	  
男手一つで	4771	  
男手一つで育て	1564	  
男手一つで自分を	352	  
男手一つで育てられ	270	  
男手一つで娘	237

Most comments at parallel proposal for 女手ひとつで

Not as common for men as for women (either in absolute terms, or as a percentage of the base noun 男手/女手), but this particular structure is still principally about parenting. 

Search google news (or anything else) and you'll get lots of confirmation: "男手一つ"

As an example, here was the first news headline that came up:
喜界島、双子バッテリー「勝ちたかった」全力２時間７分、亡き母に感謝　男手一つ父感慨／鹿児島
https://www.nikkansports.com/baseball/highschool/news/202307060000063.html

How to make sense of that... what's a 男手一つ父? (answer = single father after mom died). (男手一つ父 = 0 ngrams)

Even more abbreviated:
https://hochi.news/articles/20230509-OHT1T51206.html?page=1
【巨人】門脇誠の父寿光さん、猛打＆１号に感激　３歳から男手一つ「３６５日あっという間でした」

３歳から男手一つ = (single father since his son was 3)

"で" seems not strictly necessary, but it seems to me more like "男手一つで"　is the original structure ("男手一つで育てえる") and the expression is so common that で can sometimes be omitted to make a noun.  But a [n] entry of 男手一つ for "single father" seems like it would have more problems to me...