I can't be 100% certain because of the number of Thomas Radcliffes around at that time, but I am fairly sure that "the gardener" was Thomas Radcliffe bapt Andreas 13 July 1794, the son of Philip Radcliffe and Elinor Christian.
In Constance Radcliffe's Andreas article under "Radcliffe the Curragh" she wrote "A great-grandson Thomas, born in 1794, does not seem to have been in Andreas at the time of the 1841 Census". However his age differed in the 1841 census from his age given in later records which were pretty consistent.

In 1825 Thomas son of Philip received the legacies left him by his grandfather John Radcliffe who had died in 1802 [Philip had died in 1796 leaving two children Margaret b.1789 who later married George Brew, and Thomas b.1794].

"The gardener" comes from Andreas parish bapt and confirmation records:

Catharine RADCLIFFE bapt 14 June 1835 Andreas: father Thomas R. "Gardener to Rev. Bt?"
Andreas Confirmations 11 Aug 1850: Catherine Radcliffe 15 ½ [father's details]: "Thomas R Kerroo Garror? (my gardener)".
James bapt 12 March 1837
Thomas William RADCLIFFE bapt: 4 Aug.1839 Andreas
Andreas Confirmations 1 Oct 1854: Thomas William Radcliffe 15 Tommy the Gardeners son
Christian Phoebe RADCLIFFE bapt 24 April 1842 Andreas
Ellen Jane RADCLIFFE bap 23 Sept.1844 Andreas
John Cecil RADCLIFFE bapt: 20 June 1847 Andreas
Mary Ann RADCLIFFE bapt: 17 March 1850 Saint Jude
Elizabeth [Bessy] RADCLIFFE bapt. 7 Nov. 1852 Andreas
Margaret RADCLIFFE bapt 8 Nov. 1855.
Andreas Confirmations 25 July 1871: Margaret Radcliffe 15 1/2 Old Tommy the Gardens

Census 1871, Andreas, district 2, schedule 61, Larivane
Thomas Radcliffe, head, married, 76, gardener, Andreas
Catherine, wife, married, 56, Andreas
Margaret, daughter, unmarried, 15, Andreas
[Elizabeth, 18, visiting in Ramsey. In 1881 she was lodging at 105 Grove St, Castleton, Lancs and employed as a dressmaker. Died 1888 Rochdale according to the MI.]

Sue